Skip to main content

Filter By:

  • Show More Brands

  • Show Fewer Brands
  • Show More Sizes
  • Show Fewer Sizes

Your Search: "gore bike wear"

$95.00 - $145.00
From light winter trail riding to commuting, the Kahva allows you to carve your way through winter with concave carbide studs as well as single, double, and triple-siped lugs. - Siping on center and side lugs lets the Kahva conform to terrain for increased grip in any riding conditions - Concave carbide studs provide traction in the iciest conditions - 252 carbide aluminum studs - Directional lugs provide low rolling resistance while offering excellent braking traction - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.
$99.00
The Magura MDR-P is a disc rotor for performance-oriented riders and tough tasks ranging from downhill and ebikes to heavy cargo bikes. It features Dovetail Interlink technology, a patented interlocking of the outer and inner rings. This provides additional support for the inner ring if the outer ring expands due to heat. In contrast to floating discs, the torque is transmitted to the dovetail-shaped toothing over its entire surface instead of just the rivets, increasing the rigidity of the brake disc and the degree of heat dissipation under continuous load. The MDR-P is the most powerful brake disc in the Magura portfolio, yet it still offers riders low weight and reduced vibration. - Perfect for demanding applications such as ebike or downhill riding - Two-piece design offers the highest level of heat dissipation and high torque transfer - Wear optimized ring design - Prepared for tone wheel or magnet
$103.95 - $135.00
Dillinger 4 is a fast traction studded fat bike tire. The tightly spaced center tread rolls quickly, while taller, braced side lugs improve cornering in snowy conditions. Carefully positioned studs allow for railing icy, off-camber singletrack with confidence and control. - Braced side lugs for improved cornering - Directional center lugs for rolling speed and braking traction - Replacement studs and stud insertion tool sold separately - Custom studdable up to 252 studs - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss. - Always check with your rim manufacturer to verify rim & tire compatibility before assembly or use
$110.00
Flowbeist attacks groomed single track with confidence thanks to an ultra-aggressive tread that’s ready for whatever the trail throws at it. Designed for optimal use as a front tire, its wide 4.6” footprint floats well, rolls fast and is compatible with a wide range of frames and forks. Digging into berms brings the Flowbeist alive as its tall side lugs with softer compound rubber claw the snow. Hit the brakes on tight twisty single track and the aggressive tread design digs in to keep you and your bike in control. Pair Flowbeist with its sibling rear tire, Dunderbeist, for the ultimate combination of traction and control. - 4.6” footprint - Designed for optimal use as a front tire - Aggressive side lugs comprised of soft rubber compound - Ideally paired with Dunderbeist rear tire
$110.00
The adidas Five Ten Freerider Canvas Mountain Bike Shoes are as street friendly as they are capable on the bike. A Dotty tread with Stealth S1 rubber sets you up for flat pedal control and bike-worthy durability sets you up for the trail. All with a fit and feel that sets the bar for versatile wear on and off the bike. - Lace closure - Yarn in upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester - Canvas upper - Textile lining - Reinforced toe - Stealth S1 rubber outsole
$120.00 - $210.00
Do you ride in a wide range of winter conditions? Dillinger is one of the best winter fat bike tires for mixed conditions, thanks to its balance of speed and traction to help you stick to your line without slowing you down. And with optional studs, you’ll never slip, slide, or lose control on ice. Details: - Fast-rolling center tread for carrying speed - Large, braced side lugs for predictable cornering performance - Available with 168 Large Concave Carbide Aluminum Studs, 168 Carbide Steel Studs, or a custom-studdable tread for tuning your own stud pattern - 60 TPI and 120 TPI casing options - Tubeless-ready for supple ride quality, more grip, and weight savings - We design 45NRTH tires for extreme winter cycling applications. We do not recommend using this product with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.
$120.00 - $230.00
The extra width of the Dillinger 5 provides flotation over loose snow additional grip while turning, accelerating or braking on ice and packed snow. Available in both studded and non-studded configurations. The studded version comes with 258 concave, aluminum carbide tip studs to provide extra bite and increased durability. - Carbide studs grip ice - Braced side lugs improve cornering - Tubeless Ready - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.
$120.00
Vanhelga is a fat bike tire designed for trail riding in loose snow. It brings traction to a new level with dual-compound rubber, triple-siped shoulder knobs, and an open tread pattern that sheds snow. Vanhelga sheds snow and tracks flawlessly when the trail becomes soft and sloppy. - 120 TPI tubeless-ready casing - Ramped center lugs for rolling efficiency - Aggressively siping for grip - Shovel-design side lugs for predictable braking and cornering - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to premature casing wear and stud loss. - Always check with your rim manufacturer to verify rim & tire compatibility before assembly or use
$125.00
You want your bike to do everything, so you need gears that can do everything. The Apex XPLR derailleur hits the sweet spot of smooth jumps over a big gear range, all with unmatched chain security and the simplicity of a 1x drivetrain. Quietly and quickly shift across our 12-speed cassettes with 44T large cogs, knowing you'll have the gears you need. - Compatible with cassettes with - 44T large cogs - Use with Flattop chain - Works with 12-speed mechanical - Apex and Eagle shifters - Clutch controls chain tension for consistent shifting - X-HORIZON straight parallelogram design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force - Cage Lock technology makes for fast wheel changes or chain installation
$128.00
Eagle Technology creates the smoothest, quietest, longest lasting and most efficient drivetrains SRAM has ever made. The radical new look and feel of the X-SYNC 2 Eagle chainring is a direct result of SRAM drivetrain engineers studying the performance and wear characteristics of thousands of X-SYNC chainrings. The longer, positive-rake tooth shape has been designed to work perfectly with Eagle chains to increase chain retention and overall pedaling efficiency, while decreasing friction, noise, and wear. The complete Eagle system—crankset, chainring, chain, shifter, derailleur and cassette—is designed, tested, and proven to deliver the ultimate mountain bike drivetrain. Put simply, Eagle is capable of revolutionizing the ride for all riders on every kind of terrain. - Designed to be used with Eagle chains - Material: Aluminum
$130.00
Aero fit jersey for cold weather with thermal fabric in the main torso to protect and insulate your core, with a lighter version in the lower part of the sleeves and side panels. Three rear pockets securely hold your ride essentials. A functional cold weather jersey with clean, sophisticated look for dedicated roadies. - Black reflective transfers - Ergonomically shaped collar - Front zip with logo transfer - Mesh insert to prevent back pocket from sagging when stuffed - Premium fabric feel providing thermal stretch comfort - Secure zip pocket on rear for keys or valuables - Zip with zip port - 3-compartment patch pockets on back - Cycling specific cut with dropped tail for splash protection - Gripper elastic on bottom hem - Mesh insert in back for optimum ventilation - Reflective details - Slim fit
$140.00
Lightweight Adventure Biking Shoes Ride. Eat. Sleep. Repeat. Bikepacking is synonymous with adventure. The Five Ten Trailcross LT Mountain Bike Shoes scramble over rocky terrain and kick it at camp just as well as they grip pedals. Light, breathable, and comfortable enough for all-day wear, you've found the do-it-all adventure bike shoe for the road less traveled. - Regular fit - Lace closure - Breathable mesh upper - Lightweight, durable feel - Lightweight biking and hiking shoes - EVA midsole - Non-Marking Stealth Phantom Dotty rubber outsole - Imported
$160.00
The adidas Five Ten Freerider Pro Mountain Bike Shoes match proven flat pedal control with enhanced impact coverage. Recycled materials raise the bar for sustainability. Stealth rubber and a Dotty tread offer the legendary pedal control you expect from the Freerider family. Their comfortable build lets you move easily from bike to street for everyday versatility. - Lace closure - Quick-dry synthetic upper - Impact-resistant PORON toe box - OrthoLite sockliner - EVA midsole - Stealth S1 Dotty rubber outsole - Yarn in upper contains at least 50% Parley Ocean Plastic and 50% recycled polyester
$165.00
The Trailcross Clip-In is the latest addition to the Five Ten Trailcross family, designed from the ground up with adventure at its core. Packed with all the Trailcross technology, this latest model provides clip-in performance on the bike and all-day comfort when hiking off the bike. The addition of the Clip-In model takes the range to the next level, making our award-winning design available to clip-in pedal users for the first time. The Trailcross range was built from the ground up, starting with the Five Ten dotted outsole with the addition of a recessed cleat to clip into compatible pedals. This was then refined with hiking in mind, bringing the additional ridged grip to the toe and heel. The Trailcross Clip-In is a lightweight and breathable shoe. With the need for the shoe to provide all-day comfort but also deliver across the contact points on and off the bike, the mid-sole EVA technology provides the necessary toe flex for hiking, without losing the all-important stiffness. The Trailcross Clip-In utilizes a hook and loop closure for added security and to reduce heel lift. Clip-in pedal users no longer need to compromise when planning their next adventure. - Lace & velcro closure - Breathable mesh - RPU overlays - Impact resistant toe box - Lightweight eva w/ hike a bike last - Stealth marathon
$165.00
The Trailcross Clip-In is the latest addition to the Five Ten Trailcross family, designed from the ground up with adventure at its core. Packed with all the Trailcross technology, this latest model provides clip-in performance on the bike and all-day comfort when hiking off the bike. The addition of the Clip-In model takes the range to the next level, making our award-winning design available to clip-in pedal users for the first time. The Trailcross range was built from the ground up, starting with the Five Ten dotted outsole with the addition of a recessed cleat to clip into compatible pedals. This was then refined with hiking in mind, bringing the additional ridged grip to the toe and heel. The Trailcross Clip-In is a lightweight and breathable shoe. With the need for the shoe to provide all-day comfort but also deliver across the contact points on and off the bike, the mid-sole EVA technology provides the necessary toe flex for hiking, without losing the all-important stiffness. The Trailcross Clip-In utilizes a hook and loop closure for added security and to reduce heel lift. Clip-in pedal users no longer need to compromise when planning their next adventure. - Lace & velcro closure - Breathable mesh - RPU overlays - Impact resistant toe box - Lightweight eva w/ hike a bike last - Stealth marathon
$170.00 - $195.00
From loose snow to icy freeze-thaw and everything in between, Wrathchild craves the best and worst winter conditions. Deep center lugs aggressively claw into unconsolidated snow for extreme acceleration and braking traction. Super tall side lugs dig into loose snow to provide predictable and confident cornering. Encounter sheer ice on your ride and Wrathchild’s concave studs tear into the surface. - Deep, aggressive lugs dig into snow - Tall side lugs provide cornering confidence - 252 concave studs tear into slick surfaces - Tubeless ready - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss
$178.00
Old Man Mountain racks are the most versatile racks available. Capable of mounting to full-suspension mountain bikes, gravel bikes, road bikes, fat bikes, and even tri-bikes if that's what you're into. Tested and trusted in the most extreme environments on earth (we're still trying to get NASA to take them to the moon). Our racks have helped riders traverse Iceland in bitter cold winters, carried the gear of countless GDMBR riders, and circumnavigated the globe. The only remaining question is where will it go with you? Want to use our rack on a bike that isn't made for racks? Want to swap your rack between multiple bikes? A Fit Kit is all you need. - The Divide Fat fits up to 26×5" or 27.5×4.6" tires. - Front or rear mountable. - Made from 6061 aluminum the racks are lightweight, stiff, and strong. - The main rack frame is made of 1/2" (13 mm) diameter tubing for durability and the pannier rails are 3/8" (10 mm) diameter to fit all panniers. - The low pannier rail makes it a breeze to load and unload panniers with gear lashed to the deck. - The deck measures 5.1" x 12" (130 mm x 306 mm) - The deck includes slots for easily lashing gear in place and holes for mounting a light. - The dropouts are height adjustable to keep the weight loaded low on the bike and fit a wide range of tire sizes. - The Divide Fat come standard, eyelet mount ready with optional fit kits available for thru-axle or QR mounting. - The Divide has a load capacity of 55 lbs when eyelet is mounted. For more adventurous endeavors we offer thru-axle or QR Fit Kits, that mount the rack to the axle and increase the load capacity to a whopping 70 lbs! - Powder coated a sleek and refined shade of black - Made in Taiwan - Stainless Steel mounting hardware - Lifetime warranty!
$180.00
The pinnacle model within the Freerider family, the Freerider Pro VCS Mid includes upgraded features, including D30 ankle protection and a PRIMEKNIT ankle cuff to keep debris out. This shoe is for the all-mountain rider looking for added protection, quick-drying materials and unbeatable grip to keep them going over any trail. - Synthetic upper with impact resistant toe box for protection from trail hazards - Compression-molded EVA midsole balances pedal feel and power output - Hook-and-loop closure straps - D30 inner ankle protection - Primeknit ankle cuff keeps out unwanted debris from the trail - Stealth S1 dotty rubber outsole for unbeatable grip
$180.00
Fleece lined thermal soft shell jacket provides insulation and wind protection on cold rides. Cut to be form fitting in your riding position. Use of reflective GORE logos enhances nighttime visibility, ideal for committed winter cyclists. - 3-compartment spray resistant back pockets - Big tonal logo on sleeve - Fleece lined backer for warmth protection - Form fit - Inner cuffs - Modern road cycling fit with lengthened arms and dropped tail - Secure zip pocket on rear for keys or valuables - Zip with zip port - Gripper elastic on bottom hem - Reflective details - SHELL FACE 100% Polyester; SHELL BACKER 100% Polyester
$200.00
Highly versatile windproof soft shell with zip-off sleeves, allowing you to transform your jacket into a jersey. A relaunch of a GORE best ever selling jacket with the latest evolution of fabrics and new design lines for a more modern appearance. Perfect for rides with changeable temperatures. - Active fit - Front zip with black reflective material - Modern road cycling fit: lengthened sleeves and dropped tail for splash protection - Secure zip pocket on rear for keys or valuables - Totally windproof, extremely breathable and durably water resistant - 3-compartment patch pockets on back - Close fit high collar - Detachable raglan sleeves with broad cuff - Gripper elastic on bottom hem - Reflective details - Stretch panel in back to aid in fit - GORE-TEX INFINIUM garments with GORE WINDSTOPPER product technology: totally windproof, extremely breathable and durably water resistant, lightweight protection - SHELL 1 FACE 100% Polyester; SHELL 1 BACKER 100% Polyester; SHELL 2 FACE 100% Polyester; SHELL 2 BACKER 100% Polyester
$214.00
Elevating the shift, expanding the capable, the X01 Eagle derailleur features an updated cage architecture to provide better chain management than ever. The X01 Eagle rear derailleur works with the new 10-52T cassettes and is backward-compatible with 10-50T options, as well. - Updated cage provides better chain retention and more precise shifts - Backward-compatible design works with 10-50T and 10-52T cassettes
$219.99
The Sidi Prima is designed for the modern rider. The Prima is easy to wear and adjust, thanks to its Firmor Closure and lightweight upper built to reduce foot fatigue. Its low-profile carbon nylon Aerolite Sole is engineered for efficient power transfer for sprinting, with enough flex and comfort for long rides. -The Single Tecno-3 System creates a perfect balance between the shoe's internal and external side, providing an excellent fit while adapting to every instep -The newly designed integrated heel cup is lightweight and reinforced to avoid deformations after prolonged strenuous use -The Aerolite sole is designed to maximize aerodynamics and power transmission on the bike -The nylon and carbon fiber composite material of the Aerolite Sole provides the perfect balance of stiffness and flex for efficient and comfortable pedaling -Sidi cycling shoes include a replaceable polyurethane heel pad designed for good walkability
$220.00
The fleece-lined WINDSTOPPER soft shell for warmth and wind protection is designed to work when in your cycling position. A tight-to-body fit and excellent nighttime visibility with reflective logos and panels makes this jacket perfect for those determined to keep road cycling even on cold, dark winter days. - Black reflective transfers - Brushed fleece lining for warmth and next-to-skin comfort - Front zip with logo transfer - Secure zip pocket on rear for keys or valuables - Totally windproof, extremely breathable and durably water resistant - Zip with zip port - 3-compartment back pockets - Close fit high collar - Cycling specific cut with dropped tail for splash protection - Elastic sleeve cuff - Reflective details - Slim fit - Stretch inserts for optimum freedom of movement - GORE-TEX INFINIUM garments with GORE WINDSTOPPER product technology: totally windproof, extremely breathable and durably water resistant, lightweight protection - SHELL 1 FACE 100% Polyester; SHELL 1 BACKER 100% Polyester; SHELL 2 FACE 92% Polyester; 8% Elastane; SHELL 2 BACKER 92% Polyester; 8% Elastane
$225.00
From loose snow to icy freeze-thaw and everything in between, Wrathchild craves the best and worst winter conditions. - XL Concave Studs - Deep lugs provide accelerating, braking, and cornering traction - Open tread pattern sheds snow - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.
$230.00
SRAM's X01 Rear Derailleur packs a massive amount of technology into its compact, lightweight body. This 11-speed gear changer uses a “horizontal parallelogram” design that limits all movement to the horizontal axis, reducing the force it takes to shift. The Type 2 clutch is brilliant. This self-lubricating, one-way roller clutch controls your chain tension to eliminate chain slap and give you smooth, consistent shifts over any terrain. For quicker, smoother, more exact shifting, the large upper pulley's offset design maintains a consistent chain gap across all gears.
$243.00
The SRAM Force 1 rear derailleur adopts all the technologies of SRAM 1x MTB to provide the fastest, quietest 1x shifting available. SRAM’s unique clutch system eliminates chain slack, providing for smoother, quieter, and more secure chain travel. - A dedicated 1x rear derailleur - EXACT ACTUATION for fast and accurate shifts using SRAM’s 1:1 actuation ratio (shifter cable travel: derailleur movement). - 10- and 11-speed compatible - X-SYNC pulley features a 12-tooth design that helps control the chain’s lateral movement - X-HORIZON “straight parallelogram” design limits all movement to the horizontal axis, which makes ghost shifting impossible while also reducing shift force - ROLLER BEARING CLUTCH’s one-way roller clutch controls chain tension for consistent shifting - Cage Lock technology makes for fast wheel changes or chain installation - Available in Short: 11-26 through 11-28 / Medium: 11-26 through 11-36 / Long 11-32 through 10-42 cage lengths Short Cage: Chain Wrap Capacity (teeth): 18 teeth Largest Cog: 28 Weight: 250 g Medium Cage: Chain Wrap Capacity (teeth): 26 teeth Largest Cog: 36 Weight: 262 g Long Cage: Chain Wrap Capacity (teeth): 32 teeth Largest Cog: 42 Weight: 271 g
$299.93 - $359.99 $359.99 Up to 17% Off
Just add sunshine and watch them grow. Electra's Sprocket 16" bikes are perfect for first time riders. Featuring Electra's signature style and quality as well as our patented Flat Foot Technology, kids will be riding until the street lights come on. Easy-to-remove training make this the perfect ride for kids ages 3 to 5 between 3' to 3' 10" tall. It's right for you if... You're looking for a well designed, quality bike for your little one that is built to last. These fun-sized bikes embody all of the energy, creativity, and explorative nature of being a kid. After all, the best memories are made on two wheels. The tech you get Comfort is key with Electra's Flat Foot Technology, Kraton grips, custom Selle Royal saddle, and front linear-pull brake with adjustable reach lever. Parents will love easy-to-remove training wheels, tires with Kevlar Guard casing to protect against flats and a rear coaster brake for a smooth stop. The final word There's almost no better feeling than watching your child ride their bike for the first time. And when you finally take the training wheels off? Forget about it. With Electra's legendary quality, style, comfort and control, the Sprocket will make your kid as happy as you are. Why you'll love it - Flat Foot Technology allows kids to sit upright and plant their feet flat on the ground without ever leaving the saddle, which means no tippy-toe stops and a wide view of the road so they can see what's coming. - Front alloy linear-pull brakes and a rear coaster brake with adjustable brake levers allow them to stop on a dime when they hear the ice cream truck. - Easy-to-remove training wheels that require no tools. - 16” tires with Kevlar Guard casing to protect against flats and keep them riding all day. - Designed as a universal, aluminum frame and built to last so this bike can be passed down to siblings. - Accessorize their new ride with a custom Electra bell or handlebar bag to carry all the necessities.
$299.97 $329.99 9% Off
Boom! Kapow! Wham! Super Sprocket 16" is ready to help your little rider save the day on two wheels. This bike is like a page from their favorite comic book with action scenes and cityscapes throughout the frame, chainguard and fenders. Embossing on the saddle complete this heroic ride. - No tippy-toe stops and a wide view of the road so kids can see what's coming thanks to our patented Flat Foot Technology. - Front and rear linear-pull brakes allow them to stop on a dime when they hear the ice cream truck. - Puncture-resistant tires protect against flats to keep them riding all day while matching fenders add fashion and function. - The universal, aluminum frame is built to last making this the most desired hand-me-down. - Add a matching helmet and handlebar bag to keep them safe and carry all the necessities. Like juice boxes and snacks.
$319.99 $399.99 20% Off
Precaliber 20 7-Speed is a rugged kids' bike for young adventurers. It has a lightweight frame and quality components like a front suspension fork, 7-speed gearing, and hand brakes that are perfectly sized to better fit small riders. For kids ages 6-8, between 45-52-inches tall. It's right for you if... You love exploring nature on your bike, and want your little adventurer to come along. You're looking for a high-quality kids' bike that's comfortable, durable, and most of all, super fun for your little shredder. The tech you get A strong, lightweight aluminum frame, a simple 7-speed drivetrain that's easy for kids to handle, and a front suspension fork to smooth out bumps on the road and trail. Plus, it has a kickstand, mounts for a rear rack, and a saddle with an integrated handle that can be swapped out for an integrated taillight mount. The final word When you're young, just being outside is an adventure. Precaliber's rugged styling makes it the perfect vessel for young explorers. They may pretend to be scaling dangerous mountains or escaping terrible beasts, but with a high-quality build and components, you'll always have peace of mind. Why you'll love it - Intuitive twist shift makes it easy for kids to switch gears when their terrain changes - You can replace the saddle's integrated handle with an integrated light mount to boost visibility on family adventures and solo excursions - This bike is hand-me-down heaven: it's built to last, so younger siblings can inherit this bike and it'll still feel like new - Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off - You shouldn't buy your kid's bike where you buy your cereal—Unlike big box brands, Trek kids' bikes are assembled by people who know bikes
$319.99 $399.99 20% Off
Precaliber 20 7-Speed is a rugged kids' bike for young adventurers. It has a lightweight frame and quality components like a front suspension fork, 7-speed gearing, and hand brakes that are perfectly sized to better fit small riders. For kids ages 6-8, between 45-52-inches tall. It's right for you if... You love exploring nature on your bike, and want your little adventurer to come along. You're looking for a high-quality kids' bike that's comfortable, durable, and most of all, super fun for your little shredder. The tech you get A strong, lightweight aluminum frame, a simple 7-speed drivetrain that's easy for kids to handle, and a front suspension fork to smooth out bumps on the road and trail. Plus, it has a kickstand, mounts for a rear rack, and a saddle with an integrated handle that can be swapped out for an integrated taillight mount. The final word When you're young, just being outside is an adventure. Precaliber's rugged styling makes it the perfect ride for young explorers. They may pretend to be scaling dangerous mountains or escaping terrible beasts, but with a high-quality build and components, you'll always have peace of mind. Why you'll love it - Intuitive twist shift makes it easy for kids to switch gears when their terrain changes - You can replace the saddle's integrated handle with an integrated light mount to boost visibility on family adventures and solo excursions - Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off - This bike is hand-me-down heaven: it's built to last, so younger siblings can inherit this bike and it'll still feel like new - You shouldn't buy your kid's bike where you buy your cereal—Unlike big box brands, Trek kids' bikes are assembled by people who know bikes