For anyone who thinks “retro” should be a lifestyle, this gaming console brings a ton of nostalgic fun and entertainment without digging out the old cartridges.

It’s the ultimate blast from the past:

• Over 70,000 pre-loaded games from classic consoles—endless arcade action, no coins needed
• HDMI-compatible, so you can plug it right into your TV and enjoy a full big-screen experience
• Supports multiplayer with dual controllers, making it easy to challenge friends to old-school competitions
• Doubles as a streaming device, so you can swap between gaming marathons and movie nights
• Compact and easy to set up, bringing the arcade right to your living room without any hassle
• Built-in high-performance processor for smooth, lag-free gameplay across every classic title
• Retro-inspired design that fits perfectly into any gaming setup, adding a nostalgic vibe

The Kinhank Super Console X2 Pro Retro Gaming Emulator and Streaming Console for $99.99 is the perfect way to enjoy all your favorite games from back in the day—or introduce them to a new generation.

Kinhank Super Console X2 Pro Retro Gaming Emulator & Streaming Console – $99.99

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The post The ultimate retro gift—70,000+ games on the Kinhank Super Console X2 Pro appeared first on Popular Science.

Bringing Gorillaz into a bubble bath or Tame Impala on a deep-wood adventure isn’t as impossible as it sounds (we’re obviously talking about them in their playlist forms—get your mind out of the gutter). Portable, waterproof, and adventure-ready, this JBL keychain speaker can bring your tunes anywhere.

Get 24 percent off the JBL Clip 5, making it only $59.99 (reg. $79.95)—only 60 are left in stock at this price. Bath-time rockstars will love playing “Clint Eastwood” and actually hearing it over the running shower, and Bigfoot believers can adventure through the woods without wearing headphones and dangerously blocking their hearing. 

Clip the JBL pocket-sized speaker onto your belt loop, backpack, or shower caddy to rock out hands- and worry-free. An IP67 waterproof and dustproof rating means it can withstand drops in the tub or dirty outdoor conditions—so go nuts.

You’ll be rocking out to Radiohead or Kendrick Lamar without even realizing just how tiny this JBL really is, only five by three inches. JBL Pro Sound fills your bathroom or the trail you’re walking, so you can sing like nobody’s around or just enjoy the great outdoors with a soundtrack.

The portable Bluetooth speaker packs 12 hours of battery life, or an additional three if you use Playtime Boost mode. That’s enough for weeks of showering or multiple hikes before needing to recharge.

If you want to live the JBL experience, download the JBL Portable app. You can use equalizer presets to customize how your favorite albums and musicians sound or go wild with your own. It’s very ’80s-inspired.

Order your JBL Clip waterproof speaker while they’re only $59.99 (reg. $79.95). Less than 60 are left, so hurry if you want to save 24 percent.

JBL Clip 5 Ultra-Portable Bluetooth Speaker (Open Box) – $59.99

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The post JBL keychain speaker goes everywhere—even bubble baths and Bigfoot hunts appeared first on Popular Science.

To avoid people, mountain lions (Puma concolor) in the greater Los Angeles area are changing their activity patterns. The big cats that live near areas where humans hike, run, and cycle are becoming increasingly more nocturnal than the mountain lions who live in more remote areas. The findings are detailed in a study published November 15 in the journal Biological Conservation.

“People are increasingly enjoying recreating in nature, which is fantastic,” study co-author and University of California Davis Ph.D candidate Ellie Bolas said in a statement. “This flexibility we see in mountain lion activity is what allows us to share these natural areas together. Mountain lions are doing the work so that coexistence can happen.” 

[Related: How to survive a mountain lion encounter.]

Mountain lions are top carnivorous predators that eat a wide variety of meat including deer, wild pigs, rabbits, and coyotes. While mountain lion attacks on humans are rare, they can still be dangerous to hikers, runners, or cyclists who spend time in their habitats. The mountain lions in the Los Angeles area face numerous challenges–busy roadways where they’re often hit by cars, the threat of wildfires, exposure to rodenticide, low genetic diversity, and a fragmented habitat. Generally, mountain lions prefer to avoid humans altogether. But in a metropolitan area home to more than 18 million people, the natural spots where mountain lions and other wildlife live are also heavily used by recreationists.  

In the new study, the team was curious to see if and how mountain lions were adjusting their activity in response to recreationists. They monitored the movements of 22 mountain lions in the Santa Monica Mountains and the surrounding region of the Santa Monica Mountains National Recreation Area between 2011 and 2018.

The lions were also fitted with a GPS and accelerometer collars as part of a long-term study conducted by biologists from the National Park Service. The team analyzed the collar data and quantified how much human recreation was present in the area using a database of GPS-tracked activities that users opted to make public.

“These results are really important in that they show how humans may be affecting wildlife in less obvious ways than killing them with vehicles,” Seth Riley, a study co-author and the chief wildlife ecologist for Santa Monica Mountains National Recreation Area, said in a statement. “The study also continues to drive home the amazing fact that a population of a large field predator persists in one of the largest urban areas in the world. That would not be possible if mountain lions weren’t able to adjust to human activity in ways like this.”

The results showed that Griffith Park had the highest levels of recreational activity. The Santa Susana Mountains and Los Padres National Forest were least active. Mountain lions in these more remote regions were also typically more active at dawn and dusk.

Female mountain lion P13 in the central and western Santa Monica Mountains was the least nocturnal animal. In general, the females were more active closer to sunrise and during daylight hours compared to males. According to the team, this is potentially so that they can avoid overlapping with male lions, who can pose a threat to them and their young.

[Related: Culver City is home to a unique cat versus coyote conflict.]

The most nocturnal animals were two male mountain lions that live in small, isolated natural areas with many trails, high levels of recreation, and surrounded by human development and freeways. Both individuals also had two of the smallest home ranges ever recorded. The study’s most nocturnal lion–a male designated as P41–lived in the Verdugo Mountains, a small mountain range that spans several cities.

One of the region’s most famous mountain lions–P22–preferred to stay out of the spotlight. The “Hollywood Cat” managed to make it across two busy freeways as a young lion to earn local fame and a home in Griffith Park. P22 was the second most nocturnal lion studied and one of the oldest cats in the study. He died in 2022 when he was roughly 12 years old.

According to the team, urban experiences of P41, P22, and the others in the study shows how mountain lions will seek to avoid people rather than becoming habituated to them. They also believe that these findings offer a hopeful example of coexistence between human and wild animals in a dense human population.

However, it’s not only up to the mountain lions. People have a role in helping protect themselves, their pets, and mountain lions by being aware that dawn or dusk is prime time for mountain lion activity. The authors also urge caution when driving at night, when mountain lions living in populated areas are more likely to be active. 

“Even something as innocuous as recreation can add to these other stressors we’re bringing into their lives, potentially by altering the amount of energy they have to expend for hunting and other needs,” Bolas said. “But we can feel a sense of optimism that they are flexible in the timing of their activity. Coexistence is happening, and it’s in large part because of what mountain lions are doing.” 

The post Mountain lions in Los Angeles become night owls to avoid humans appeared first on Popular Science.

While gift-giving is supposed to be all about the act of giving, it really feels great when your gift is the favorite of the day. Instantly become known as the one who always gives the best gifts when you gift the gamer in your life 3 months of the Xbox Game Pass Core for just $19.99. And you can skip straight to checkout to grab this digital code.

This means you’re giving three months of access to an incredible library of more than 25 high-quality games and exclusive multiplayer features on Xbox’s advanced network. Imagine the joy when they realize they can play Among Us with friends, dive into classic franchises like Halo and Forza, and experience thrilling new titles—all thanks to you.

The holidays are all about coming together (mostly), and Xbox Game Pass Core is here to make that easier than ever. With online multiplayer access, your favorite gamer can connect with friends and family, wherever they are, creating memorable moments across every game. 

Here’s the best part: Xbox Game Pass Core isn’t just about the games. It also comes with exclusive discounts of up to 50 percent off select games, giving your gift lasting value well beyond the holidays. And because the codes are stackable up to 12 times, you can give literal years of adventure if you’re feeling extra generous.

Sound like a perfect match for the gamer on your shopping list? Head over to checkout to get it now. 

You also have the option to spend a little more and get Xbox Game Pass Ultimate instead for access to even more games. This option also gives your giftee access to day-one releases. This option is stackable as well.

The advanced Xbox multiplayer network ensures a smooth, immersive experience—whether they’re teaming up in Grounded or competing in a Halo showdown.

So, if you’re aiming to win at gifting this year, Xbox Game Pass Core is the way.

Head straight to checkout and get 3 months of the Xbox Game Pass Core for the best price online right now, just $19.99 (final sale) while it’s still available.

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The post Become the cool uncle when you gift Xbox Game Pass Core appeared first on Popular Science.

Today’s mass-produced tomatoes often grow to palm-sized proportions, but their naturally occurring ancestors were far smaller fruits. They were also sweeter and more flavorful due to their lower water content compared to the red fruits found in grocery stores—but recent genetic discoveries have unlocked the path to attaining the best of both worlds. Using CRISPR editing techniques, researchers created new “mutant” tomatoes that are as large as modern varieties while retaining a sweeter, more enjoyable taste. And all it took was deactivating two genes.

A team led by geneticists at the Chinese Academy of Agricultural Sciences in Beijing utilized the CRISPR-Cas9 technique to identify the pair of genes controlling sugar amounts in the tomato species, Solanum lycopersicum—the calcium-dependent protein, kinase 27 (SlCDPK27 or SlCPK27) and its paralogue, SlCDPK26. These, according to researchers, act as a tomato’s “sugar brakes” by degrading the enzymes responsible for sucrose production. By simply deactivating the two genes, the new varietal grew fruit with 30 percent more glucose and fructose than common mass-production tomatoes. What’s more, doing so resulted in no measurable change in fruit size or total quantity.

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“Although there are fewer, lighter seeds in the mutants, they exhibit normal germination,” the team wrote in their study published on November 13th in Nature. “Together, these findings provide insight into the regulatory mechanisms controlling fruit sugar accumulation in [tomatoes] and offer opportunities to increase sugar content in large-fruited cultivars without sacrificing size and yield.”

According to study co-author Jinzhe Zhang, the new mutant tomatoes are a marked improvement on those found in supermarkets.

“[They] taste like water. They’re flavorless,” Zhang complained of today’s options in an accompanying profile. 
But it’s not just the flavor improvement that’s important. Nature notes that an estimated 205 million tons of tomatoes are produced globally each year, most of which are as much as 100 times bigger than their wild ancestors. All that extra water requires removal for products like tomato paste, however, resulting in extra energy, financial, and time costs. Sweeter tomatoes may one day offer more efficient produce options for manufacturers. And because the two isolated genes are found in many other plant species, similar genetic editing may help improve other agricultural staples in the future.

The post They CRISPR’ed tomatoes to make them sweet and large appeared first on Popular Science.

So you’ve chosen your perfect electric bike—well, that’s just the beginning because now it’s time for accessories. You’ll need some core bicycle gear to get started, like a high-impact helmet, a reliable lock, and a floor pump to keep those tires inflated. Then, you can really get into the fun by finding other bicycle accessories to make your ride perfectly unique to you. The more you ride, the more you’ll spot ways to make your bike more comfortable and useful for getting around town, exercise, and outdoor adventures. I’ve curated some of the best electric bike accessories—like the best overall essential, a reliable helmet—to help make trips safer and more comfortable, whether you’re new to e-bikes or have been riding for a while. 

• Best helmet for e-bike commuters: Trek Charge WaveCel Commuter Helmet
• Best helmet with crash detection technology: Smith Trace Mips Aleck Crash Sensor
• Best U-lock: Litelok X1
• Best folding bike lock: Seatlock Foldylock Elite
• Best secondary lock for carrying on rides: Ottolock Hexband Cinch Lock
• Best floor pump: Topeak Joe Blow Sport III High Pressure Floor Pump
• Best digital floor pump: Fix Mechanic Eflator Digital Tire Pump
• Best additional lighting: Redshift Sports Arclight Pro Flat Pedals
• Best reflectors: RydeSafe Bike Spokes Reflectors
• Best phone mounting system: Peak Design Mobile
• Best upgrade for rider comfort: Redshift Sports Shockstop Endurance Suspension Seatpost
• Best car rack for e-bikes: Yakima OnRamp XL

I’ve been a dedicated e-bike commuter for years, and not just to get to work. Beyond carefully transporting my work laptop and clothes, my bikes lugged grocery hauls, takeout food, a trail-a-bike with a quasi-cooperative kid, and very frequently, my dog. In addition to my hands-on experimenting with different baskets, racks, bags, bungees, and doodads, I consulted bike experts, the PopSci team, and read over customer feedback to find the best electric bike accessories to enhance your ride.

When I first started commuting by e-bike, I went the minimalist route and wore a backpack. As temperatures rose, I opted for a rack and some waterproof panniers to get the load—and sweat—off my back. I’m constantly fine-tuning my setup for different weekend adventures and to mitigate the weather of different seasons, and these are the best e-bike add-ons I’ve discovered.

Heather Kuldell

Specs

• Technology: WaveCell
• Certifications: U.S. Consumer Product Safety Commission (U.S. CPSC) Safety Standard for Bicycle Helmets, Dutch Technical Agreement (NTA) 8776 and S-EPAC (speed e-bike) safety standards
• Colors: Two
• Sizes: S, M, L

Pros

• BOA fit system to easily dial in on head size
• Fidlock magnetic buckle closure
• Blendr mount systems for additional accessories
• Washable helmet pads
• Crash Guarantee Replacement for one year

Cons 

• Could use more ventilation for hotter days
• More colorways would be nice
• Outer matte shell can scuff

If you have an e-bike, you need a helmet—and if your helmet is more than five years old or you’ve only been outfitted for traditional bicycles, you might want to upgrade. 

“Since e-bikes can reach speeds of up to 28 mph, it’s advisable to choose a helmet that is rated for e-bike use, as these provide added protection in the event of a higher-speed impact,” according to Mei-ling Wong, the head of communications at e-bike maker Velotric.

The Trek Charge WaveCel Commuter Helmet meets U.S. and Dutch safety standards for bike helmets, covering more of the head than most bike helmets to better protect from higher-speed crashes. It’s also styled for riders who want to look less like they’re cosplaying a Tour de France segment. WaveCel, the main tech in this helmet, is a lightweight 3D structure that flexes and crumples on impact and helps absorb the rotational impact that rattles your brain. It’s also a breeze to properly size and secure with an easy-twisting BOA fit system and magnetic buckles. I’ve managed to scuff the outer shell a bit, but I also don’t treat helmets with kid gloves when I store them. At about $160, it’s not cheap, but safety is priceless, making this the most essential of our best electric bike accessories.

Heather Kuldell

Specs

• Technology: MIPS Brain Protection System, Koroyd 
• Certifications: U.S. CPSC Safety Standard for Bicycle Helmets, European Union (CE EN) 1078 safety standard
• Colors: 10 options
• Sizes: S, M, L

Pros

• Aleck Crash Detection Sensor w/ app
• 18 vents
• Ionic+ antimicrobial lining
• Lightweight

Cons

• Bluetooth and app connections require periodic charging
• Less popular routes/less population-dense areas may not have app heroes to help out in case of a crash

I ride solo a lot—as most commuters do—and somewhere in the back of my mind is my mom’s voice asking what happens if I wipe out. Smith must have heard it, too, or at least that’s the vibe I get from the Trace MIPS Aleck Crash Sensor. The $270 helmet is packed with head protection tech, including a roll cage, MIPS (which stands for Multi-directional Impact Protection System) to redirect rotational force, and Koroyd, another lightweight structure that absorbs a hit. But the mom-pleasing part: An Aleck Crash Detection Sensor built-in to the band adjuster that sends alerts to pre-programmed emergency contacts and other users of the Aleck app. After an impact, a rider has 30 seconds to cancel an alert.

In fairness, I didn’t wreck myself to see if one of the app’s users would come to the rescue. The system relies on the kindness of strangers—but many trails always have. Less densely populated areas and very isolated paths may not find many users around them, and if your cell has no signal, your alert won’t go out. Still, I’ll take those odds. 

Litelok

Specs

• Size: 10.35 inches tall by 5.62 inches wide 
• Weight: 3.7 pounds
• Certifications: Sold Secure Bicycle Diamond and ART4

Pros

• Made of Barronium, which deters angle grinders
• Eco-rubber outside to prevent scratching frame
• Includes frame mount
• Reflective strips for visibility
• Comes with two keys and pouch
• Three-year warranty

Cons

• Mount works best on a traditional triangle frame

Bike locks are a bummer to buy because anyone who sells them will remind you that no lock will definitively 100 percent ensure your bike will be where you locked it. Instead, you’re aiming to be the bike that’s too much of a hassle to try to steal. Learn how to properly lock up and think about multiple locks. Consider the security of the area you’re locking your bike and how long it will be there. Most lock manufacturers also include a scale of how secure they consider their locks; of course, the hardiest options will also be the most expensive. All that said, a lock is the second-most essential of the best electric bike accessories after a helmet.

The Litelok X1 is beloved by the bicycle community despite a price tag of about $180 for one. Made of a barronium alloy, the Litelok X1 resists angle grinders—a pro-thief tool of choice—better than other locks on the market. It has the highest rating possible from Sold Secure, an independent non-profit lock testing organization, and the Dutch ART Foundation ranks it as high enough quality to protect motorcycles. The main complaint is the cost, and a quibble is that the included mount works best on frames with a traditional triangle shape and plenty of room. However, on the Litelok site, it boasts a 4.8-star rating with more than 1,200 reviews, plus accolades from bicycling publications. Buying two X1s as a bundle will save you about $25.

Seatlock

Specs

• Circumference: 43.3 inches
• Size when folded: 9.37 inches tall by 2.71 inches wide by 1.85 inches thick 
• Weight: 4.2 pounds
• Certifications: Sold Secure Bicycle Gold and ART3

Pros

• Foldable
• Hardened steel with drill-protected rivets
• Rattle-free holder for carrying while riding
• Come with three keys
• Three-year warranty

Cons

• May be too large for mounts on frames that aren’t a traditional triangle
• Heavy at more than four pounds

“Locks are about two things: stopping and deterring thieves,” explains Pav Bryan, master cycling coach at Humango. “Unfortunately, cheaper locks make your bike an easy target.” 

Folding locks offer flexible options for e-bikes that tend to have thicker and unusually shaped frames than traditional bikes. They offer space to lock a front wheel and frame to an immovable object, plus the on-frame mount makes it easier to ride with than a U-lock or massive chain. 

Bryan recommends the Seatylock folding range. At about $140, the Foldylock Elite, for example, unfurls to about 44 inches and is rated Bicycle Gold by Sold Secure, which, on a scale of bronze to diamond, indicates a higher level of theft resistance to certain commonly used tools. The downside is that it’s heavy at more than 4 lbs. and may be too large for the placement of some mounts. 

Heather Kuldell

Specs

• Size: Available in 18-, 30- or 60-inch lengths by 0.75 inch wide by 0.125 inches thick 
• Weight: About 0.4 pounds

Pros

• Lightweight
• Rolls into a coil with fasteners to keep it in place
• Six layers of stainless steel wrapped in aramid fiber. 
• Keyless combination

Cons

• Can be difficult to reset the combination from default
• Cold fingers can make it difficult to dial in the right combo
• You’ll still want a heavier-duty lock for long-term lockups

The Ottolock HEXBAND Cinch Lock is meant for quick stops like snacks or bathroom breaks where you might be tempted not to lock up. Think of it as a very large zip-tie made of six layers of steel wrapped in a fiber coating that won’t scratch your frame. At less than half a pound, it’s very lightweight and rolls up to fit in most bags fairly easily. Starting at $69, the HEXBAND comes in three different lengths that can be paired with other sturdier locks. For example, you may have been taught to use a U-lock and then weave a cable through both sets of wheels. The problem with that is cables are very easily snipped. Instead, you can cinch your wheels to the frame with the HEXBAND or use it as an additional locking point to a rack or bench … or as additional security on a car rack. I’ve also used them in a pinch to attach items to my bike rack.

The HEXBAND doesn’t require keys. You can program a three-digit code, though that takes some finger strength and dexterity. Ditto unlocking: Be sure to lock up where you can see the code without becoming a contortionist, as sometimes the numbers can be challenging to spin into place.  

Topeak

Specs

• Size: 29.1 inches tall by 7.3 inches wide by 9.8 inches long
• Weight: 3 pounds, 11 ounces

Pros

• Large, easy-to-read pressure gauge
• TwinHead DX pump head fits Presta, Schrader, and Dunlop valves
• Includes ball and bladder needles for other inflation needs

Cons

• Manual pumps are always a workout for a truly flat tire
• Sometimes it takes a time or two to properly attach to valves
• This is for your garage or home, not to carry on rides

“All bicycle riders should own a full-size floor pump to keep at home,” says Justin Christopher, owner of RideCX and bicycle industry expert. “All bicycle tires bleed some air over time, and this doesn’t mean that you have a flat tire or puncture. It’s normal and expected to need top-off tire pressure, and you should do so regularly to protect the tire and rim from damage. Proper tire pressure can also help extend the range (battery life) of your e-bike too!”

The Topeak Joe Blow floor pump is a classic, reliable floor pump that’s usually under $60. I have an older model of this—seriously, it’s about 15 years old—that works exactly how it did the day I bought it, except with a slightly yellowed plastic handle. It’s always a workout to pump up a tire from flat, though topping off a few pounds of pressure is much easier. Plus, the built-in pressure gauge is easy to read, and you can connect Presta or Schrader valves without fussing with adapters. 

Specs

• Size: 5.4 inches tall by 3.5 inches wide by 1.89 inches deep
• Battery capacity: 2000 mAh

Pros

• Four tire pressure presents
• Inflates up to 100+ max PSI
• Choose between PSI, KPE, BAR, or KG/CM2 inclination units
• Valve chuck works for Schrader and Presta valves
• Built-in flashlight
• Nylon carry bag
• One-year warranty

Cons

• A bit large to carry on rides, but not impossible
• Quite noisy 76 dB average noise level
• USB-C cord included, but wall adapter is not

Humango master cycling coach Pav Bryan says electric floor pumps are becoming increasingly popular and recommends the Eflator Digital Floor Pump. This pump does most of the work for you: Set a tire pressure target, hit a button, and the Eflator cuts off when it hits it. This tiny air compressor is loud when it operates, but it can be used with other things like pool toys, balls … whatever needs inflating. It comes with a USB-C cable to keep the battery charged, but does not include the wall adapter. It’s a little large to toss in a saddle bag, but it’s not impossible. 

Tony Ware

Specs

• Colors: Black and silver
• Weight: 602 grams (pedals), 26 grams (each light module)
• Water-resistance: IP64 rated
• Threading: Standard 9/16-inch
• Traction pens: 10 replaceable

Pros

• Aluminum pedals include two light modules each
• 9/16-inch threading compatible with most modern bicycles
• Sensors determine whether light color (white or red) depending on which way it’s facing
• Magnetic mounts hold lights in pedals
• Rechargeable individually with USB-A port or included dock that holds all four lights
• Auto on and off
• Mountain bike-style studs for better grip
• Weather-proof 

Cons

• Takes two hours to fully charge
• Steady light has battery life of about three hours
• Must select mode using button on each light module

Most, but not all, e-bikes come with built-in lights, but that might not be enough for you to feel seen in dark riding environments, especially on busy roads and intersections. Though I’ve seen plenty of bike and accessory makers boasting their lights give you “360-degree visibility”—as in you can be seen from any angle—that usually means a thin sliver of a light that wraps around the frame. Redshift’s Arclight Pro Flat Pedals take a completely different approach. Replace your current pedals with this mountain bike-inspired set that has studs for grip, houses two rechargeable LED modules, and illuminates the center of your bike. Regardless of how much you spin your pedals, a smart sensor keeps the forward light colored white and the rear one red, indicating which way your bike is facing even if you’re stopped. 

Headlights are for the cyclist to see where they’re going, but the Pro Flat Pedals are so others on the road can see the cyclists—up to 57 percent more than without the pedals. These pedals also come in other styles: the more flat, shin-friendly Arclight City Pedals or Pro Clipless Pedals for anyone who wants to snap in. They’re truly a cool bike accessory with three settings to ration out your battery life with either a steady glow for three hours, a flash for 11, or eco-flash for up to 36 hours. And if you have multiple bikes, you can buy multiple pedal sets but use the same LED modules. 

Heather Kuldell

Specs

• Number of stickers included: 12 per sheet

Pros

• Easy installation
• Multiple shapes and colors to choose from

Cons

• Permanent installation till you cut them off
• Only visible when light shines on them

Sometimes, simple solutions are the best, like these reflective stickers from RydeSafe. For about $36, you get a set of reflective stickers that you place on your spokes. So anything that shines a light on your bike should see it from the side, thanks to prismatic reflective technology—no batteries or charging required. Choose from chevron, circular, or “squircle” shapes or white, red, and fluorescent yellow. Wipe spokes down with rubbing alcohol, fold the sticker over the spoke, pinch the sticker, and you’re done. RydeSafe makes a ton of other reflective stickers, too, if you’re comfortable with stickers on your frame. 

Peak Design

Specs 

• Phone models supported: iPhone 12-16, Pixel 7/8/9, Samsung Galaxy S23/S24 (older phones have single color options)

Pros

• Sturdy connection
• Peak Design supports an interchangeable system of products, including motorcycle, car, and other accessories like wallets and stands
• Physical attachment in addition to MagSafe (on applicable phones)
• Made of bluesign-approved nylon canvas, rubberized TPU bumper, molded buttons, and ultralight polycarbonate body
• Available in six colors

Cons

• Availability of cases is better for newer phone models
• Screen protector not included

Placing a smartphone on handlebars can be a worrisome experience and I personally have challenged the impact claims of many cases that went flying, doing some serious screen damage in the process. Peak Design, however, combines magnetic and mechanical connections to create a seriously sturdy mobile ecosystem. The Everyday Case (roughly $50, depending on the phone model and size) allows MagSafe attachment and has a SlimLink ceramic aperture that locks into place on any other Peak Design accessories. The Out Front Bike Mount v2 (about $70) and the Universal Bike Mount (about $50) both firmly held my phone in place without so much as a wobble despite riding over wooden bridges, a few potholes, and some unfortunately large roots pushing through trails. It takes pinching two buttons to release the SlimLink connection. Two things to note: There isn’t an included screen protector, and if there were steady rain, I would likely pop my phone into a pocket or something to prevent water damage. 

Specs

• Travel: Up to 35mm
• Weight: 497g – 732g, depending on length
• Rider weight limit: 242 lbs. – 264 lbs., depending on diameters

Pros

• Available for 27.2, 30.4, 30.9, or 31.6mm stems in multiple lengths
• Additional shims available to expand compatibility
• Two springs and adjustable stiffness for customization
• Comes with required hardware

Cons

• Learning curve for new users to adjust the seatpost’s pre-load/stiffness
• Can be confusing to figure out whether your e-bike model is compatible

The first instinct for a sore bum from riding is usually to upgrade the saddle. Not a bad thought, but you’ll get more joy from upgrading to a suspension seatpost like Redshift Shockstop Endurance Suspension Seatpost. Even when the price tag is around $225, the reduction in fatigue without diffusing your pedal power is worth it. Suspension posts add motion to the seatpost, absorbing some of the impact that the rider would normally get. Seriously, consider it if you ride a very stiff or rigid frame that otherwise doesn’t have a suspension fork, or you find yourself frequently standing on pedals to diffuse upcoming bumps. Yes, bike shorts with a chamois can help this, too, but very frequently, e-bike riders are in street or work clothes, not cycling outfits. Upgrading to one of these aluminum alloy seatpost makes the bike more comfortable by reducing vibration up to 60 percent, regardless of what the rider wears. 

Installing a suspension post isn’t too hard, but it’s also the kind of task a local bike shop is happy to help with. Consult with Redshift customer service if you’re unsure whether your e-bike model is compatible with their seatposts (there are also models for more gravel- and race-focused cyclists). The more customized or oddly shaped your e-bike frame is (a particular concern with carbon fiber frames), the more likely the seatposts won’t be compatible. 

Yakima

Specs 

• Size: 25 inches long by 40 inches wide by 75 inches tall
• Weight: 53.50 pounds

Pros

• Comes in 1.25-inch and 2-inch hitch options that carry 70 pounds per bike and 80s pounds, respectively
• Carries two bikes with dual wheel straps
• Integrated on-ramp that stows within rack
• Telescoping bike trays to adjust to wheelbases from 34 to 54 inches
• StadiumSeating aims to prevent bikes bumping into each other
• Three-position tilt folds flat against vehicle back or out to allow access to trunk
• Off-roading compatible, but maximum bike weights drops to 48 pounds
• RV compatible
• HitchLock to secure rack to vehicle receiver

Cons

• Adjustability can lead to a long time getting everything all set
• No built-in locking system

“E-bikes are heavy; they need a hitch bike rack to support the weight,” says Stephanie Holbrook, an endurance coach and Level 2 USA Cycling coach. “Many heavier-duty bike racks also have a ramp for easier loading.” 

Holbrook recommends the Yakima OnRamp LX, which has ramps built-in to the rack, and highly adjustable trays and claw hooks to accommodate most bikes, even with fatter wheels and fenders. Trays adjust to different wheelbases, so kids’ bikes or large cargo e-bikes. Switching bikes in and out, however, will mean a lot of fussing to get the trays and frame holders properly aligned. While the rack can lock into the vehicle receiver, you must supply bike locks for transport (see our favorite options above).

The 2-inch hitch model can carry two bikes at up to 80 pounds each, while the 1.25-inch hitch model accommodates up to 70-pound bikes. Both models run about $900, and if you drive bikes around a lot, consider the additional purchase of the Yakima Lit Kit, which supports brake lights and turn signals. 

Traditional bikes and e-bikes have a lot in common, but not everything. E-bikes tend to be heavier and faster, bringing some different needs for the best electric bike accessories like more impact-resistant helmets, bigger locks to go around thicker frames, and hitch-style car racks to accommodate more weight. And if you’re traveling without the battery attached, Mei-ling Wong of Velotric recommends buying a battery connection cover to protect sensitive electronics from dirt, debris, and moisture. 

Many e-bikes also come with many common accessories built-in already, like lights and fenders. When they don’t, e-bike makers tend to develop their own accessory lines that fit their models seamlessly, regardless of custom handlebar shapes and unique frames. For example, front baskets and handlebar bags, in particular, can be challenging thanks to generally already cluttered cockpits, but proprietary options take into account headlight placement and any external wiring or screens. Many e-bikes have chunkier racks, sometimes so heavy-duty they support passengers. For panniers and trunk bags, check to ensure they have extra long velcro or other compatible attachments. 

But, like traditional bikes, you’ll need to learn some basic maintenance, like keeping tire pressure right and maintaining bike chains. You’ll need to pick up some basic tools and bike lube. 

“Even the most casual rider should have some form of understanding of bike mechanics and/or a backup plan for when an issue occurs, such as a flat tire,” cycling coach Pav Bryan says. “This might be bringing the aforementioned pump and some inner tubes with you. It might be a slightly more sophisticated multi-tool (and a general understanding of how to use it!), or it might be just ensuring that your route has adequate cell service and that your phone has enough battery to make a call for assistance.” 

The right bike accessories depend on what you’re using your bike for. The essentials include a bike helmet, a good lock, and a pump to keep your tires at the appropriate pressure. If you regularly ride electric commuter bikes, you’ll need to know how to carry stuff on your bike. Your bike gear may focus on mitigating weather, like fenders to prevent road spray and lights for evening rides. If you opted for one of our best budget electric bikes, you may want to spend some of your savings on small comfort upgrades like a cushier saddle or ergonomic handle grips. 

A high-quality helmet and lock are two items you need to have from the moment you get your e-bike. Helmets protect a rare commodity—your brain—and locks protect the investment in your bike. Focus on getting as high-quality safety and security items as your budget allows. Other accessories—tools, toys, and upgrades—don’t need to be purchased at once. It’s easy to overinvest in bike gear you don’t need simply because you haven’t really figured out how and when you’ll ride.

Another common mistake is assuming all accessories are compatible with every bike. Always check to see if your bike model has the required mounting points and space requirements. Frame size and shape play a part in this; smaller or step-thru frames typically have fewer mounts, for example. Differences in brake types can affect whether a rack will work, and different racks play better with different baskets and panniers. For the best fit—and most fun—take your bike to your local bike shop to get a better idea of what accessories will work with less trial and error. 

Bike bag names tend to line up with where you attach them. Saddlebags or seatbags tend to hang beneath the saddle. Handlebar bags attach to handlebars, and yes, frame bags hang within the bike frame. Panniers, on the other hand, can be attached to racks on the front or rear of a bike and generally are some of the larger bags bikes carry. Trunk bags attach to the top of rear racks, directly behind the rider. 

The Snell Foundation, a not-for-profit organization focusing on helmet safety standards, recommends replacing helmets every five years. However, helmets aren’t a dairy product: They don’t suddenly “go bad.” Daily riders, though, might want to shorten that timeline to two to three because temperature swings, sweat, and even the sun’s UV rays can all degrade the helmet’s protective materials over time. Other events trigger replacement, like crashes, visible damage, or if somehow the helmet no longer fits or has become uncomfortable. 

• Best helmet for e-bike commuters: Trek Charge WaveCel Commuter Helmet
• Best helmet with crash detection technology: Smith Trace Mips Aleck Crash Sensor
• Best U-lock: Litelok X1
• Best folding bike lock: Seatlock Foldylock Elite
• Best secondary lock for carrying on rides: Ottolock Hexband Cinch Lock
• Best floor pump: Topeak Joe Blow Sport III High Pressure Floor Pump
• Best digital floor pump: Fix Mechanic Eflator Digital Tire Pump
• Best additional lighting: Redshift Sports Arclight Pro Flat Pedals 
• Best reflectors: RydeSafe Bike Spokes Reflectors
• Best phone mounting system: Peak Design Mobile
• Best upgrade for rider comfort: Redshift Sports Shockstop Endurance Suspension Seatpost
• Best car rack for e-bikes: Yakima OnRamp XL

Finding the right accessories for your e-bike is all about balancing function, safety, and fit. While some e-bikes come equipped with helpful features like racks and lights, others may require additional investments to meet your needs. Focus on essentials first—like helmets, locks, and pumps—then expand into comfort and convenience upgrades as you get to know your bike. Keep maintenance basics in mind, and always double-check compatibility when selecting from our best electric bike accessories. With careful planning, your e-bike setup will be ready to tackle any adventure.

The post The best electric bike accessories in 2024, tested and reviewed appeared first on Popular Science.

A sliver of Martian rock that once lay hidden in a university drawer has helped researchers better understand the Red Planet’s geological history. Using isotopic dating, a team at Purdue University has determined that the “Lafayette Meteorite” likely interacted with liquid water approximately 742 million years ago.

It was a long journey to this discovery, however, and one that happened partially by chance. About 11 million years ago, an asteroid collided with Mars, sending plumes of debris beyond the planet’s atmosphere. One of those meteorites eventually succumbed to Earth’s gravitational pull after a lengthy journey through space, sending it on a trajectory that ended in Indiana. Although the exact dates of its arrival and discovery are unclear, the penny-sized bit of rock somehow found its way into a Purdue University biology department desk drawer, where faculty uncovered it in 1929.

Sometime in the 1980s, unnamed parties donated the Lafayette Meteorite (named after its location) to Chicago’s Field Museum. There, experts matched gasses trapped within the rock to those detected in the Martian atmosphere by NASA’s Viking spacecraft. Additional analysis indicated minerals in the meteorite at one point interacted with liquid water on Mars, although a specific timeframe couldn’t be established.

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That mystery appears finally solved thanks to researchers in Purdue University’s Department of Earth, Atmospheric, and Planetary Sciences (EAPS). In a study published on November 14th in Geochemical Perspective Letters, the experts explained that isotopic dating and analysis provides chemical evidence that the Lafayette Meteorite mostly likely interacted with liquid water while the rock first formed roughly 742 million years ago. But that’s not to say Mars necessarily hosted vast oceans and rivers—or at least not during that era.

“We do not think there was abundant liquid water on the surface of Mars at this time,” Marissa Tremblay, an assistant professor in EAPS and study lead author, said in a university profile earlier this month. “Instead, we think the water came from the melting of nearby subsurface ice called permafrost, and that the permafrost melting was caused by magmatic activity that still occurs periodically on Mars to the present day.”

Researchers also made sure to account for any potential contamination that may have occurred while the meteorite spent 11 million years in space.

“The age could have been affected by the impact that ejected the Lafayette Meteorite from Mars, the heating Lafayette experienced during the 11 million years it was floating out in space, or the heating Lafayette experienced when it fell to Earth and burned up a little bit in Earth’s atmosphere,” Tremblay explained. “But we were able to demonstrate that none of these things affected the age of aqueous alteration in Lafayette.”

In the future, researchers believe similar dating methodologies could one day be applied to not just other meteorites, but planets. In doing so, they hope to potentially discover evidence of water elsewhere.

The post Meteorite found in a drawer in 1929 contains ancient evidence of liquid water on Mars appeared first on Popular Science.