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They say that every journey begins with a single step, but when that journey is related to exercise, that first step can sure be a doozy. It can be life-changing, however, and there's no better machine to take the plunge with than with the Roll. With its lightweight alloy low-entry frame that lets you easily put a foot down when needed, eight speeds of "go fast" MicroSHIFT gearing, stable and wide 650b tires, powerful hydraulic disc brakes, and low-entry design that makes it a easier to get on and off the bike, the Roll does everything in its power to encourage and motivate you to keep fit and get around in comfortable, efficient style. - Equipped with a Body Geometry Comfort Gel saddle, you can expect a supreme level of comfort anywhere you ride. It is ergonomically designed and scientifically tested to provide unmatched comfort and support while reducing pressure on soft tissue. - The Low-Entry Roll is made from our A1 Premium Aluminum, and it features our Ground Control Positioning that makes it easy to put a foot down when stopped. This Roll also comes ready with rack/fender mount, making it easy to carry extra weight. - Wide diameter, 650b x 2.3" Nimbus II Sport Reflect tires provide excellent traction, stability, and cushioning, which creates a safer, more reliable, and more comfortable ride on either paved or dirt roads. Plus, the reflective accents of the tire increase your visibility to motorists in low-light conditions.

A good pair of tights should be towards the top of your winter riding essentials list, and the RBX Tights are no exception. They were purposefully constructed without a chamois, and the reason is pretty simple. For those who prefer to keep riding in their favorite bib shorts year-round, you're able to simply layer these tights over your shorts for predictable comfort and added warmth. And for anyone seeking out versatility, these tights will be perfect for use in other disciplines like Nordic skiing, running, or snowshoeing. - Articulated design ensures the perfect fit while in the riding position. - Fabric Content: 78% Nylon, 22% Spandex Knit - Four-way stretch fabric provides ample comfort and a soft hand against the skin. - No chamois included in this tight allows you to wear it over your favorite bib shorts or shorts, extending the wearability of this piece when you need the extra leg protection. - Reflective elements increase your visibility to motorists in low-light conditions. - UPF 50+ rating protects your skin from harmful ultraviolet rays.

Specialized's Atlas Knee Pads protect XC and trail riders from abrasion and minor impacts while maintaining a sleek fit for mobility. The custom formed, anti-shock foam pad provides protection while remaining lightweight and flexible, making the pad equal parts comfortable and confidence inspiring. This slip-on protector incorporates an extra tall cuff to keep the pad comfortably in place while pedaling and helps protect in the event of a minor impact. - Custom-formed pad shape with anti-shock foam delivers efficient protection. - Extra tall elastic cuff with silicone grippers ensures a secure, comfortable fit. - VaporRize body materials transfer moisture away from the skin and regulate temperature. - Articulated slip-on construction with open-back design provides pedaling comfort and a secure fit.

Free yourself to explore the mountain. The Track 110 combines ski-hike versatility with all-conditions performance and all-day comfort. The forgiving 104mm last maintains a relaxed fit, while the shell is engineered for reduced weight and full power transfer. The insulated liner offers foot-wrapping warmth for any ski day big or small. Details: - Relaxed Fit 104mm last features a wider forefoot, toe box, and ankle area while retaining a strong heel pocket for generous all-day comfort and support - Insulated Warmth Wintherm Insulation stops heat loss and reflects warmth back to its source - Reduced Weight, Full Power Engineered Sensor Matrix shell design reduces boot weight and delivers direct-to-ski power transfer - Easy On Softer plastic around the instep allows for easier opening of the boot overlap for smooth entry and exit - Hike Mode The Hike Mode lever offers ski/hike versatility by freeing the boot cuff for an increased range of motion for walking and hiking - Custom Comfort and Precision Full custom liners are 100% customizable for enhanced comfort, precision, and power transmission - GRIPWALK Compatible (sold separately) GRIPWALK soles feature a rubber tread and rockered toe for a more natural walking motion and increased traction

Roscoe frameset gives you a solid starting point for an awesome hardtail trail build. The light and sturdy alloy frame is made for a 140-150mm fork, 29er wheels and wide tires. Spec it for however you’ll ride it, whether you're planning on getting down or catching air. - Fits up to 2.6" tires for a grippy, confident, and fast-rolling ride - Add a dropper post for more stability and control on rugged descents - Long, low, and slack - Roscoe's trail bike geometry gives you confidence for rugged descents.

Verve+ 2 is an electric hybrid bike that will help you get out and ride more. Your daily cruises, commutes, and workouts will all get a boost from the reliable Bosch pedal-assist system that sustains speeds of up to 20 mph. Plus, this e-bike is equipped with parts that put your comfort and safety first, like a road-smoothing suspension seatpost, wide, stable tires, and front and rear lights. It's right for you if... You want to do more by bike and have more fun on every ride. You know the extra boost of an e-bike will help you see more and go farther, and you're looking for one that's comfortable, built to last, and equipped with the latest e-bike technology. The tech you get A lightweight Alpha Gold Aluminum frame, a 250-watt Bosch Active Line motor capable of sustaining speeds up to 20 mph, a PowerPack 400Wh battery, and a handlebar-mounted Bosch Purion controller. Plus, Shimano hydraulic disc brakes for all-weather stopping power, a road-smoothing suspension seatpost, wide 45c puncture-resistant tires for extra stability, ergonomic grips, a kickstand, front and rear lights, and a rack and fenders. The final word Verve+ 2's powerful pedal-assist system opens up a world of possibilities. You can adventure longer, commute quicker, and climb hills more easily. The extra boost makes riding your bike even more exciting and enjoyable, and quality components and comfort features make going farther and faster more fun than ever. Why you'll love it - Electric bikes amplify your power so you can enjoy the best parts of riding even more - The 250-watt Bosch Active Line motor helps you sustain speeds up to 20 mph - This bike gets you outside more and helps you make the most of every commute, cruise, and workout - It comes equipped with lights, fenders, and a rear rack so you're ready to ride right from the start

Nothing in the cycling world is more infuriating than flat tires. We get it, because we get them just like you. But with our Desert Protection Schrader Valve Tubes, you can minimize, if not eliminate, flats at the terrible hands of debris, thorns, or whatever else is halting your rides. Starting at the basis of the construction, we designed the tube to be thicker at the outer side, the part against the tire, in order to stop pesky bits from puncturing all the way through the tube. We then make the inner side, the part against the rim, thinner in order to reduce weight. This way, you don't have to sacrifice performance in the name of protection. We didn't stop there, however, as these tubes also feature our Airlock sealant that coats the tube for permanent protection against punctures. Not only this, but the sealant is designed to work continuously in order to prevent slow leaks from occurring, so erring complete catastrophe, you won't have to worry about flatting when you're riding over debris. We even addressed the common issue of sealant pooling with a completely homogenous design, so the tire/tube combo will always roll smooth and even. - Thicker construction on the outer side (against the tire) enhances puncture protection. - Thinner construction on the inner side (against the rim) maximizes weight savings. - Sealant coats the tube for permanent protection against punctures. - Non-toxic, non-separating formula will last the life of your tube. - Designed to work continuously in order to prevent slow leaks. - Homogenous design prevents puddles with no need to shake. - Will not dry out like the many other sealants.

Tannus Armour Tubeless inserts are the result of years of top level multi-cell foam manufacturing mixed with extensive professional riding experience. At the heart of Tannus is the patented Aither Technology; a multi-cell foam compound that forms the structure of the Armour. The inserts are designed to displace small impacts while offering a spring-like rebound for a smooth yet playful ride. - 3% Faster than standard tubeless - Flexible sidewall stabilizing "Wings" for smoother ride quality, with 50% more vibration damping - 20mm of rim protection - Not a sealant sponge – keeps sealant where it belongs - Easy Installation (5 Minutes, No tools required) - 150g - About as much as a standard tube (a little lighter)

Nothing in the cycling world is more infuriating than flat tires. We get it, because we get them just like you. But with our Desert Protection Presta Valve Tubes, you can minimize, if not eliminate, flats at the terrible hands of debris, thorns, or whatever else is halting your rides. Starting at the basis of the construction, we designed the tube to be thicker at the outer side, the part against the tire, in order to stop pesky bits from puncturing all the way through the tube. We then make the inner side, the part against the rim, thinner in order to reduce weight. This way, you don't have to sacrifice performance in the name of protection. We didn't stop there, however, as these tubes also feature our Airlock sealant that coats the tube for permanent protection against punctures. Not only this, but the sealant is designed to work continuously in order to prevent slow leaks from occurring, so erring complete catastrophe, you won't have to worry about flatting when you're riding over debris. We even addressed the common issue of sealant pooling with a completely homogenous design, so the tire/tube combo will always roll smooth and even. - Thicker construction on the outer side (against the tire) enhances puncture protection. - Thinner construction on the inner side (against the rim) maximizes weight savings. - Sealant coats the tube for permanent protection against punctures. - Non-toxic, non-separating formula will last the life of your tube. - Designed to work continuously in order to prevent slow leaks. - Homogenous design prevents puddles with no need to shake. - Will not dry out like the many other sealants.

We're not afraid to say it—our Airlock Schrader Valve Tubes are the best performing, self-sealing bicycle tubes available. That's because they feature our powerful Airlock sealant that coats the tube for permanent protection against punctures. Not only this, but the sealant is designed to work continuously in order to prevent slow leaks from occurring, so erring complete catastrophe, you won't have to worry about flatting when you're riding over debris. We even addressed the common issue of sealant pooling with a completely homogenous design, so the tire/tube combo will always roll smooth and even. - Airlock sealant for the best chance of reducing punctures. - Non-toxic, non-separating formula. - Works continuously to prevent slow leaks. - Homogenous design prevents puddles with no need to shake. - Will not dry out like the many other sealants.

Tannus Armour Tubeless inserts are the result of years of top level multi-cell foam manufacturing mixed with extensive professional riding experience. At the heart of Tannus is the patented Aither Technology; a multi-cell foam compound that forms the structure of the Armour. The inserts are designed to displace small impacts while offering a spring-like rebound for a smooth yet playful ride. - 3% Faster than standard tubeless - Flexible sidewall stabilizing "Wings" for smoother ride quality, with 50% more vibration damping - 20mm of rim protection - Not a sealant sponge – keeps sealant where it belongs - Easy Installation (5 Minutes, No tools required) - 150g - About as much as a standard tube (a little lighter)

Our Standard Presta Valve Tubes feature a molded method of construction that ensures a consistent thickness of butyl rubber. This means that they don't have any unnecessary weight and will roll smooth, ride after ride.

Because it's hard to know when you're going to get a flat, it's always good to have extra tubes on hand. Specialized's Turbo Ultralight MTB Tube w/Talc is lightweight to save rotational weight. The Talc lets the tube move easier inside the tire for a better ride with fewer flats.

Our Standard Schrader Valve Tubes feature a molded method of construction that ensures a consistent thickness of butyl rubber. This means that they don't have any unnecessary weight and will roll smooth, ride after ride.

Securely stow a multi-tool, chain breaker, and master link in your fork’s steerer tube for quick and easy access when you need it. Securely stow your essential trail toolkit in your fork’s steerer tube with this clever integrated storage solution. The compression fitting replaces a traditional MTB fork's star nut and keeps an included multi-tool and more cleanly out of sight, yet always at the ready—and it doesn't require you to thread your fork! Product details - Easy tool access for quick trailside repairs - Bolted compression system securely holds tool and carrier - Compression install replaces the star nut fitting with no need to thread fork - Simple install with two bolt lengths and included spacers for customizing fit - Includes BITS Multi-Tool with hex keys, screwdriver, chain breaker, and storage for quick links - 2, 2.5, 3, 4, 5, 6, and 8mm hex along with T25 and flat-head screwdriver - Compatible with MTB forks with threadless headsets and non-carbon steerer tubes - Not compatible on forks with oval internal steerer tube shapes like the Fox 38

From the outset of the Torch 3.0 Road shoe design process, our goal was to create a performance offering as feature-packed as any top-end shoe. The challenge, however, was pulling this off at a palatable price. In order to achieve this, we utilized three strategically placed materials on the uppers that are welded together—TPU and mesh in the front and synthetic leather in the rear. This makes for a more comfortable and supportive front of the shoe. A stiff rear and heel cup, meanwhile, lock down your heel and keep all of your watts going into the pedals as efficiently as possible. This refined upper is combined with our legendary FACT carbon fiber sole to further ensure an efficient power transfer. Finally, we topped the Torch 3.0 off with two Boa S2-SV Snap dials for zonal closure, and a precise fit that leads to all-day comfort. - Body Geometry sole construction and footbeds are ergonomically designed and scientifically tested to boost power, increase efficiency, and reduce chance of injury by optimizing hip, knee, and foot alignment. - FACT carbon composite sole and torsion box construction is directionally rigid for outstanding power transfer: Stiffness Index 8.5. - Dual Boa S2-SV Snap dial closure for on-the-fly micro-adjustment, backed by the Boa Lifetime Guarantee. - Mesh, TPU, and synthetic layer upper are placed in specific zones for comfort and lock-down, and are thermobonded for a superior fit. - Standard Fit for support and all-day comfort. - Three-bolt cleat pattern fits all major road pedals. - Approximate weight: 248g (1/2 pair, Size 42)

The Eliminator GRID TRAIL 2Bliss Ready T9 tire features a tread that combines an aggressive block design with a well-balanced tread pattern. Its transition knobs help bridge the traditional channel between center and shoulder knobs, making the Eliminator extremely predictable on soft to hardpack trails. It's perfect for enduro and E-bikes where versatility and confidence are key. Our GRID TRAIL casing is a step up from GRID with more reinforcement, delivering better handling at lower pressures, all while increasing pinch flat protection by 15% and puncture protection by 30%. Building on this solid base, the high-dampening GRIPTON T9 compound rebounds slowly to grip and stick to the ground for total traction and control. - 29 x 2.3, psi 25-50, approximate weight 975g - 29 x 2.6, psi 20-40, approximate weight 1050g - Bead: Foldable - Butyl wrapped bead = 2Bliss Ready - Casing: 60tpi tough trail construction with additional bead to bead protection for exceptional puncture resistance, sidewall stiffness and stability. - Compound: GRIPTON T9

The all-new Levo delivers the unbelievable power to ride more trails through an unequaled combination of ride quality, usable power, and ride anywhere range. It's the distillation, application, and amplification of a 40-year obsession with creating the world's best riding mountain bikes. Since its introduction, Levo has set the bar every other e-MTB aims for, and the new Levo raises that bar again. It starts with our Turbo Full Power 2.2 motor and Master Mind Turbo Connect Unit (TCU), which provide Levo with a smooth and seamless amplification of your efforts, 4x your power that lets you choose where to ride, and when you want to do it. Levo also shatters limitations when it comes to range, amplifying your effort for up to five hours of trail time. Now you can ride farther, and explore more, than ever before. And the optimized chassis boasts 150mm of custom-tuned rear suspension and adjustable geometry that delivers a stable and natural ride like no other. Because at the end of the day, it's the ride that matters. Believe it. More climbing, more descending, more miles, more fun. Spec'd with a no-fuss SRAM SX/NX drivetrain, trail-taming RockShox suspension, and a lightweight, durable alloy wheelset, the all-new Turbo Levo delivers more of everything that you love about trail riding. -Levo's fully integrated Turbo Full Power 2.2 motor, 700Wh battery, and Turbo Connect Unit deliver category-leading 90 Nm of torque and 565 watts of power for up to five hours of ride time, empowering you to ride farther and faster than ever before. -The MasterMind Turbo Control Unit is your information hub with customizable display fields, including the exact percentage of battery level, and it features our all-new MicroTune function to adjust power delivery in 10% increments, so you get exactly the support you need to experience precisely the ride you want. -A dedicated mixed-wheel size design with a 27.5" wheel in the back and 29" up front delivers a nimble ride that carves circles around other full-power e-MTBs. A generous cockpit centers you on the bike, optimizing traction and corner control. The low bottom bracket, slack headtube angle and reduced fork offset keep things stable in the rough. -Levo offers six distinct geometry settings, allowing you to easily dial-in its performance for any riding style and any terrain. Head tube angle can be adjusted between 63- and 65.5-degrees. Bottom bracket height can be fine-tuned up or down by 7mm. -Levo's 150mm of rear travel is supple on small bumps, devours square-edged hits without a twitch, eats massive G-outs for breakfast, yet still offers amazing pedal response and delivers your power to the ground with total efficiency. -The Levo's S-Sizing is based on what matters—rider size and style, not inseam. Six sizes, all with similar headtube lengths and standover, allow you to choose the size that best suits your individual style. Smaller S-Size numbers are going to be nimble and more flickable, while bigger S-Sizes deliver more stability and a roomier ride.

With an emphasis on comfort, Nordica's Sportmachine 3 65 W focuses on your feet—so you can focus on your skiing. Reimagined to offer even greater control, it features a wider yet low profile 102 mm fit and a softer shell that offers a plush and forgiving ride designed specifically for beginner and intermediate skiers. Its 3 Force Construction sports a new spine and cuff design that boosts your confidence and efficiency by maximizing the transmission of energy to the ski. Incredibly soft, its liner is built around a woman's calf and can be heat molded for a custom fit. And thanks to a dual entry instep, getting in and out of the boot is especially easy. Great days begin with Nordica's Sportmachine 3 65 W.

Set yourself up to explore winter. The X5 touring boot offers support, stability, and control for on- and off-trail skiing. Designed for adventurous recreational skiers, the boot's tall cuff and lace cover seal out snow, while the thermo-moldable fit allows for customized comfort. A powerstrap complements the hinged cuff design for stability and range of motion, for a natural stride no matter where the snow takes you. Ski Control, Walkability The Sport Sole features Tech Grip for comfortable walking and central insert cleats for maximum precision and control on the ski. Quick, Easy Closure Speed Lace Lock system offers fast, easy closure for increased support. Customizable Fit, Comfort Thermoadjustable liners can be heat-molded around your feet for a customized fit and comfort.

Unrivaled suspension kinematics, sublime handling, perfectly-tuned frame stiffness—the Stumpjumper Comp is our fully featured, fully affordable, full-carbon, definitive trail bike. All-new geometry, all-new suspension, thoughtfully spec'd—it's ready to take you wherever the trail may lead. THE TRAIL BENCHMARK: -When we set out to design the all-new Stumpjumper, we pursued some hefty goals. It had to excel on any kind of trail, for every style of rider. To achieve that, we went after serious weight reduction without sacrificing durability, a stiff, responsive chassis that still rides light and lively, geometry that improves everyone's riding, and the best suspension kinematics we know how to design. Turns out, you can have your cake and eat it too with the new Stumpjumper. THE SWEETEST 130MM OF TRAVEL YOU'LL EVER RIDE: -We massaged the kinematics of the Stumpjumper suspension to bring out the very best all-round performance possible in a 130mm package. Countless hours of suspension lab development and field testing created a refined mid-travel ripper that eats big terrain like a gravity fed beast, handles like a dream everywhere, and climbs like it has a motor. PROGRESSIVE GEOMETRY: -The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. It's long, low and slack, with a short offset fork and a steeper seat tube angle. These numbers combine to make your ride more stable, more carvealicious, more comfortable climbing, more better everywhere. With FlipChip adjustability you're able to further fine-tune your fit, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose. RIDER-FIRST ENGINEERED™ -Rider-First Engineered™ frames use a size-specific approach to ride characteristics that ensures benchmark handling and flawless performance, regardless of frame or rider size. Whether you're a jump-happy grom riding an S1, or a DH-fiend giant in need of the lengthy S6, you'll experience the same ride traits – rail-sharp cornering and balanced front and rear stiffness – at the lightest-possible weight, And by light, we mean real light: 2,250 grams (S-Works, S-3 size, with rear shock). SWAT™ -When we introduced the SWAT™ door on the Stumpjumper in 2016, we increased pocket space, and added room for those "oh s**t" pumps and flat accessories. With the new Stumpjumper, we've kept those same design hallmarks that you know and love.

The Purgatory CONTROL 2Bliss Ready tire is the standard-bearer for light trail tire performance. The new, completely redesigned tread features square lugs that bite in on soft soil while still providing support on hard-packed ground. Additionally, flexible center sipes fold out under braking force for increased ground contact and adhesion. To top it all off, our proprietary GRIPTON compound helps make this the perfect choice for epic trail rides in any condition. - Folding bead - Casing: 60 TPI - Compound: GRIPTON - Approximate weight: 750g

Super fun. Super versatile. The Ponto Go! is exactly what you need in your life. This throttle e-bike will get you, a friend and your stuff from point A to point B. Find some cool spots. Get into some good trouble. What could go wrong? Better question, what could go right? You're over ride share, tired of bumming rides or don't feel like driving. Bottom line, you're looking for a faster, easier and safer way to get around. Grab a helmet, grab a friend, and find out yourself. It features both thumb throttle up to 20mph as well as pedal-assisted support up to 26mph, making it a Class 3 e-bike. A 750W hub motor and 650Wh battery enable rides up to 60 miles. Tektro hydraulic disc brakes provide superior stopping power when traveling at faster speeds and with cargo. For an extra level of safety, a rear brake light and turn signals let other riders and cars know your next move. We thought of it all, from upgraded safety features and a passenger package that comes standard to custom accessories you can add to make it your own. Inspired by our SoCal roots, the Ponto Go! is the perfect combination of fun and functionality so you can ride around and find out. -Maximum throttle-assisted speed up to 20mph and pedal-assisted speed of 26mph. -Up to a 60-mile range on a single charge. -A bench-style saddle, passenger handle and foot pegs make this a ride for two. -Maximum carrying capacity up to 360lbs. -See and be seen with front and rear brake lights and turn signals. -Stop confidently with hydraulic disc brakes.

Steel

Injected with a dose of north woods style and know-how, the Yukon Cap has you covered when the temperature plummets. A wool blend exterior and soft-pile fleece lining provides generous insulation, and buttoned ear flaps fold down for additional warmth when it gets truly cold. - High-pile lining - Foldable brim - Earflaps - Convertible - Embroidered OR Logo - Woven Face Label

Built for the coldest deep winter riding with our most insulating materials, our Merino Deep Winter Tall Socks are sure to keep your feet warm and dry. - VaporRize™ blend of polyester and Richter™ merino wool offers exceptional warmth and odor protection - Full terry foot and front of ankle construction for exceptional heat retention - Resisted® carbon yarn toebox speeds moisture wicking keeping your warmer longer without the extra bulk - Calf High - 18cm/7in with seamless toe construction - Fabric Content: 35% Merino Wool, 30% Polypropilene, 25% Polyamide, 5% Polyester, 5% Elastane

What's better than ripping down the mountain, your riding absolutely on point? Staying plenty cool while doing it. Our new Trail Air Short Sleeve jersey uses VaporRize, a super-lightweight, breathable fabric, that keeps you cool while feeling comfortable against your skin and protecting you from ultraviolet rays and trial side foliage. - Crew neck collar keeps things casual and comfortable. - Deflect UV 30 protects your skin from harmful, ultraviolet rays. - Fabric Content: Knit 87% Polyester, 13% Spandex - Regular Mountain Bike Fit is generous and comfortable. - VaporRize fabric is made from our most breathable, lightweight fabric that uses a Recycled Polyester blend to create its superior wicking ability.

Solstice Women's Gel Cycling Glove allows you to conquer longer rides with long-lasting gel comfort. This padded bike glove uses strategically shaped and placed silicone pads to add comfort and absorb road vibration, so your hands stay happy longer. - Silicone gel pads are specifically designed for comfort and vibration control - Optimized pad density properly distributes pressure right where it's needed - Unique pad design reduces bulk while providing a better connection to the bike - Faux suede palm provides great durability and texture for grip - Sleek pull-off feature on middle and ring finger makes glove removal easy - Soft nose wipe on thumb - Mesh back-of-hand for breathability and a comfortable fit - Hook-and-loop closure provides a customizable and secure fit

The Hydrogen Vent Road Socks are your feets' best friend for hot rides. The VaporRize Hydrogen yarns are the lightest-weight yarns we use, resulting in cool, calm, and collected feet. - 7" cuff height (size Medium) - Mesh knit structure in the cuff provides the highest level of breathability for even the hottest rides. - PowerBand mid-foot arch supports the foot and secures the shape and fit where the foot needs it most. - Targeted textured zone under forefoot reduces slip. - VaporRize Hydrogen yarns are extremely lightweight and soft against the skin, placing an emphasis on moisture transfer and minimizing friction. - Vented mesh toe channel helps to keep things light and airy within the shoe.

Your little ones have a youthful, intrepid spirit that sees them riding wherever the wind takes them. Most of the time, however, it takes them straight through thorns and debris, leaving you with the unenviable task of changing out flat after flat. But with our Standard Schrader Valve Youth Tubes, you'll have the peace of mind that they're riding on tough tubes that are built strong to last. And to make sure of it, they feature a molded method of construction that ensures a consistent thickness of butyl rubber— meaning that they'll roll smooth and stay tough, ride after ride. - Consistent thickness for the utmost in quality. - 32mm Schrader valve