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650B Wheel

Fitting high-profile tires to 26in wheels will give you a good idea of how 650b wheels with normal tires will feel.

650b wheels offer most of the quick acceleration feel and nimbleness of 26in wheels, but with a nod towards the smoother-rolling feel, extra stability and enhanced traction of 29in wheels.

Trek Marlin 7
$649.99 - $829.99 $749.99 - $829.99 Up To 13% Savings
Mountain adventure awaits Marlin takes its cue from light, fast XC bikes. The right wheel size for each frame size, performance pedigree, and unbeatable ride feel make Marlin the perfect trail rider. When you're ready for longer days on the bike, bigger challenges on the trail, and all the fun of the full mountain biking experience, you're ready for Marlin. Key features - Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned aluminum frame is XC light, mountain tough - Extended size range gives you a better fit for a better ride - Backed by Trek's limited lifetime warranty
Trek Marlin 7
$749.99
Marlin 7 is where race-worthy mountain bikes begin. The smooth, lightweight RockShox fork and widest range of gearing in the Marlin family make this model the best choice for new riders who want a cross country hardtail with great parts that will hold its own against Trek's higher-end race bikes. It's right for you if... You're new to the trail but have serious singletrack aspirations, and want a race-worthy mountain bike with upgrades on the parts that make a big difference in performance, like a higher quality suspension fork. The tech you get The flagship model of the Marlin lineup has a lightweight Alpha Silver Aluminum frame with internal derailleur routing to protect your cables and add to the bike's sleek look, a high-quality RockShox fork with a lockout feature and 100mm of travel, a 27-speed drivetrain, and a low-profile Shimano Shadow rear derailleur that's made to avoid snagging on trail debris. The quality fork and parts make Marlin 7 fully capable of taking on off-road marathon rides and XC races. The final word The RockShox suspension and wider range of gearing make it the best choice in the Marlin lineup for new mountain bikers who know they want a serious bike for their money. Why you'll love it - All the value, plus all the versatility—it's a totally race-worthy mountain bike, with rear rack mounts if you use it for commuting too - It's really fun to ride, and feels like a much more expensive mountain bike - Great suspension at an even better price - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Trek Top Fuel 8
$2,799.99
Living legend The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail. The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team. Key features - RE:aktiv XC: the smartest, fastest, most efficient shock ever - Boost148/110: stronger wheels, more tire clearance, shorter stays - Mino Link adjustable geometry lets you fine-tune your ride - Exclusive suspension tech with ABP and Full Floater
Trek Remedy 7 27.5
$2,799.99 $2,999.99 7% Savings
Bring on bigger Remedy is the mountain biker's mountain bike. 27.5? wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. Key features - Stout 150mm frame optimized for enduro and technical trails - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP and Full Floater - Straight Shot stiffness, Knock Block frame defense
Trek Top Fuel 9.8 SL
$4,699.99 $5,199.99 10% Savings
Living legend The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail. The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team. Key features - RE:aktiv XC: the smartest, fastest, most efficient shock ever - Boost148/110: stronger wheels, more tire clearance, shorter stays - Mino Link adjustable geometry lets you fine-tune your ride - Exclusive suspension tech with ABP and Full Floater
Trek Marlin 5
$479.99 - $519.99 $519.99 Up To 8% Savings
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A front suspension fork with 100mm of travel, 21 speeds, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. It's right for you if... You're new to the trail and want a serious mountain bike that doubles as a commuter—and you want it all at an exceptional value. The tech you get A lightweight Alpha Silver Aluminum frame, 21 speeds, a wide range of gearing so you never need to pedal too hard or easy on terrain that varies in elevation, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a suspension fork with 100mm of travel—that's the same amount favored by most cross-country racers. The final word Built-in Trek's MTB heritage, and more than capable of taking on trail adventures. But it's also versatile. It's a popular ride on college campuses because the rack and kickstand mounts make it easy to accessorize and haul a load. Why you'll love it - It's a real mountain bike that's also perfectly suited to daily commutes, rides around campus, or just getting from A to B on any surface - Smaller frame sizes (13.5" and 15.5") have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - It has separate brake and shift levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort - Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Trek Marlin 6
$579.99 - $589.99
Marlin 6 is a quality introductory cross country mountain bike with front suspension, 24 speeds, and a wide range of gearing for easier pedaling on climbs. It's built in Trek's trail heritage, but also equipped with features like rack and fender mounts that make it a great choice for daily commuters. It's right for you if... You're testing the waters of off-road riding, and want a real mountain bike at a great value, with a wide range of gears to cover more ground on the road and trail. The tech you get: Marlin 6 has 24 speeds, a wide-range cassette so you can always find the right gear for your terrain, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a 100mm suspension fork with a lockout feature—that's the same amount of travel favored by most cross country racers. The final word: Marlin 6 is built to stand up to the trail, but also equipped with rack and fender mounts and a wider range of gears that make it a great choice if your mountain bike doubles as your commuter.
Trek Marlin 6
$599.99
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday adventures, on and off the trail. A front suspension fork with 100mm of travel, 21 speeds, and mounts for a rack and kickstand make it an ideal choice for new trail riders or anyone looking for a comfortable, stable commuter with the ruggedness of a real mountain bike. It's right for you if... You're testing the waters of off-road riding, and want a real mountain bike at a great value, with a wide range of gears to cover more ground on the road and trail. The tech you get The heart of Marlin 6 is a lightweight Alpha Silver Aluminum frame with internal derailleur routing. It has 24 speeds, a wide-range cassette so you can always find the right gear for your terrain, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a 100mm suspension fork with a lockout feature—that's the same amount of travel favored by most cross-country racers. The final word Performance features like suspension lockout, stronger double-walled rims, and hydraulic disc brakes. It's also equipped with rack and kickstand mounts and a wider range of gears. These design details make it a great choice if your mountain bike doubles as your commuter. - Lots of gears so you can cover a lot of ground fast, without ever pedaling too easy or too hard - Smaller frame sizes (13.5-inch and 15.5-inch) have short-reach brake levers that make it easier and more comfortable for riders with smaller hands to brake confidently - It has separate brake and shift levers (a feature that's common on more expensive mountain bikes) so you can fine-tune the positioning for comfort - Rack and kickstand mounts make it easy to accessorize, so your mountain bike can double as a rugged commuter - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Trek X-Caliber 8
$899.99 $1,099.99 18% Savings
Jump front wheel-first into the off-road world aboard Trek's X-Caliber 8. This sleek dirt-worthy bike starts with a lightweight Gold aluminum frame with Gary Fisher's proven G2 geometry. Complementing the sublime ride is a RockShox fork that gives you 100mm of travel to add even more cush and steering confidence to the big steamrolling wheels. Proven parts hang off the sweet frame and fork with tubeless-ready wheels with Shimano disc brakes. And, you also get the solid performance of SRAM shifting and the quality of Bontrager controls. And with Trek's Smart Wheel sizing, you're riding the fastest wheel size with the best possible fit. It all adds up to a ride more than ready for the off-road world!
Trek Marlin 4
$449.99
Key features - Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned aluminum frame is XC light, mountain tough - Extended size range gives you a better fit for a better ride - Backed by Trek's limited lifetime warranty
Trek Fuel EX 9.8 27.5
$3,749.99 $4,999.99 25% Savings
Trek's Fuel EXs are the benchmark for trail bikes; the 9.8 27.5 is taking that benchmark to the next level. The carbon frame dishes out 120mm of travel, but that's only a small piece of the package. Stiffness means efficiency and better handling, so you're armed with an E2 head tube and a 142x12mm rear thru-axle. Add to that 27.5-inch wheels, and this bike is quick, capable and maneuverable. Fox and Trek teamed up with F1 racing company Penske to make Fox's brilliant Float Re:activ rear shock even better. Combined with the 34 Float up front, your Fuel is blazingly fast and efficient on smooth sections and shrugs off bigger hits like an enduro rig. The rest of the spec is just as capable: full XT 2x11 gearing, a Reverb dropper post, XT discs, carbon bars, and Bontrager tubeless-ready wheels wrapped with proper tubeless rubber.
Trek Procaliber 9.6
$2,499.99
Procaliber 9.6 is a lightweight carbon hardtail with the unique advantage of our trail-smoothing IsoSpeed decoupler. It's the most affordable carbon model in the Procaliber mountain bike family, and it's built for speed and efficiency on singletrack with an OCLV Mountain Carbon frame, a SRAM 1x12 drivetrain, and a RockShox Recon Gold RL fork. It's right for you if... You're more than a casual singletrack rider. You put in long miles on the trail, show up to race, and want the performance advantages and light weight of a carbon cross-country bike with IsoSpeed. The tech you get A light and stiff OCLV Mountain Carbon frame and the unique advantage of our trail-smoothing IsoSpeed, reliable SRAM NX Eagle 1x12 drivetrain, powerful Shimano hydraulic disc brakes, Bontrager Kovee 28-hole Tubeless Ready wheels, and Boost148/110 spacing for increased stiffness and better tire clearance. The final word When it comes to speed and efficiency, carbon makes a big difference. Procaliber 9.6 lets you experience the advantages of a carbon race bike with IsoSpeed at an approachable price, and it gives you solid tech where it matters and the option to make easy parts upgrades in the future. Why you'll love it - You're getting into a carbon race bike at an awesome price - The IsoSpeed decoupler and carbon frame makes it ride smoother than any other hardtail, so your body doesn't get beat up by trail chatter - The sleek internal cable routing gives you clean looks and protects your cables
Surly Bridge Club
$1,200.00
When your bike touring route takes you over the river and through the woods with a quick jaunt through town for supplies, you can't beat the versatility and smooth riding characteristics of Surly's new Bridge Club. First off, it's a Surly so you know the 'Natch chromoly steel frame and fork are built to handle your entire kit and caboodle, and thanks to the typical overabundance of rack and cage provisions you can mount your gear via traditional racks and panniers, go full bikepacking-style, or mix-up your favorite combo of the two. The Bridge Club rolls on plump 27.5 x 2.4-inch WTB Riddler tires for a blend of low rolling resistance on smooth pavement and confident handling on forest trails. You can also run up to a 2.8-inch wide tire for more flotation, or swap-in a 700c wheel and tire combo if your route includes a lot of on-road riding. A dependable 2x10 drivetrain ensures you'll never run out of gears as you make the push up long climbs, and mechanical disc brakes offer worry-free performance to keep you safe no matter what the weather brings. And, thanks to fully housed cabling and front and rear fender mounts, you can splash through soggy days with a smile. A comfortable Salsa Bend flat bar and WTB Volt saddle complete this relaxed all-terrain tourer.
Trek Procaliber SL Frameset
$2,299.99 $2,499.99 8% Savings
In mountain biking's heyday, Procaliber was the envy of all other race bikes. Now it's back to rule the XC circuit once again, redefining the term “hardtail” and setting the bar for speed and smarts. Procaliber's IsoSpeed decoupler delivers uncompromising cross country performance, efficiency, and an incredible ride feel. It's the fastest, smoothest, smartest hardtail on the trail. Key Features - Smooth IsoSpeed decoupler: ride faster, stronger, longer - Boost148/110: stronger wheels, more tire clearance, shorter stays - SL frame saves 250 grams and has Control Freak internal routing - Ride the fastest wheel that fits with Smart Wheel Size
Trek Procaliber 9.8 SL
$4,299.99 $4,699.99 9% Savings
Key features - Smooth IsoSpeed decoupler: ride faster, stronger, longer - Boost148/110: stronger wheels, more tire clearance, shorter stays - SL frame saves 250 grams and has Control Freak internal routing - Ride the fastest wheel that fits with Smart Wheel Size
Trek Remedy 9.7 27.5
$3,299.99 $3,699.99 11% Savings
Bring on bigger Remedy is the mountain biker's mountain bike. 27.5? wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. Key features - Stout 150mm frame optimized for enduro and technical trails - Boost148/110: stronger wheels, more tire clearance, shorter stays - Exclusive suspension tech with ABP, Full Floater, and RE:aktiv - Straight Shot stiffness, Knock Block frame defense
Trek Top Fuel Carbon Frameset
$2,799.99 $2,999.99 7% Savings
Living legend The bike that ruled the podium at the height of mountain bike racing is back to reclaim the top step. Refined and reinvigorated with new technology, Top Fuel is the fastest bike on the trail. The better-than-ever Top Fuel is the fast, versatile choice for the cross country racer, marathon rider, and the entire Trek Factory Racing World Cup team. Key features - RE:aktiv XC: the smartest, fastest, most efficient shock ever - Boost148/110: stronger wheels, more tire clearance, shorter stays - Mino Link adjustable geometry lets you fine-tune your ride - Exclusive suspension tech with ABP and Full Floater
Trek Fuel EX 8 27.5
$2,345.00 - $2,939.99 $2,939.99 Up To 20% Savings
Trek's Fuel EX 8 27.5 elevates the classic trail bike to make a ride that lets you push your own limits, as well as those of a 120mm-travel bike. Chalk that up to its 27.5 tubeless-ready, thru-axle wheels and CTD-equipped Fox suspension. That travel is controlled with Trek's ABP rear end and Full Floater linkage that keeps your rear wheel in full control, even during hard, fast braking. The aluminum frame is done right with an E2 head tube, aggressive geometry, and excellent stiffness throughout. A Shimano/SRAM 2x10 drivetrain deliver crisp, quick shifts every time, and you're armed with Shimano SLX discs and a Bontrager cockpit. Go ahead, push the limits, the Fuel EX 8 is ready.
Haro Double Peak I/O
$2,799.99
The Haro Double Peak I/O sports distinctively smooth and flowy lines designed to lower the standover height and center of gravity. In addition, the Double Peak I/O includes proprietary SpeedStays for outstanding handling and performance. It comes complete with with a crisp-shifting 10-speed 1X Shimano drivetrain and Shimano’s STePS 6050 mid-motor drive for road and light trail trail use. - DP COMP I/O frame, X6 alloy, for E-6000 motor, external battery 1-1/8" head tube - Suntour XCM32 / E-Bike E-45, 100mm travel - Shimano STePS E6050 Drive unit / 250 Watts, STePS 450 w/h battery - Shimano Deore RD-6000, 10-spd, Shadow Plus rear derailleur, - Deore 10-spd, 11-42T Cassette - FSA crankarms for STePS E-6000 motor - Shimano M365 hydraulic disc brakes, 180mm / 160mm rotors
Haro Double Peak 27.5 Sport
$519.99
Whether you're new to the sport, have been riding a while, or are a returning mountain biker, Haro's Double Peak 27.5 Sport is non-stop fun straight from your door to your favorite trail and back again. This tough machine boasts an aluminum frame with a 100mm suspension fork to smooth out the rough stuff and fast, nimble 27.5-inch wheels wrapped in knobby Kenda tires to hook up in a variety of conditions. It also sports fine components like a smooth-shifting 24-speed Shimano drivetrain to get you rolling and powerful Shimano mechanical disc brakes to slow you down in a hurry.
Trek Slash Carbon Frameset
$1,799.99 $3,499.99 49% Savings
Trek's Slash Carbon Frame is built to dominate: the mountain, gravity, your limits, the guy with #1 on his number plate. Throw it down the most technical descents, fly back up. And win. This tough, lightweight OCLV carbon frame is designed around 27.5-inch wheels and an enduro-optimized geometry, so you can roll fast, go big, and keep progressing. A RockShox DebonAir shock and Full Floater linkage gives you a coil feel with the weight of air, while the Mino Link adjustable geometry lets you fine tune your ride. Trek's Active Braking Pivot keeps that suspension active when you're on the brakes for smooth, steady control. And, internal routing keeps all those derailleur and dropper post cables out of sight for a clean look.
Trek Remedy 9.8 Women's
$3,799.99 $5,299.99 28% Savings
Remedy is the mountain biker's mountain bike. 27.5" wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. Key Features - New 150mm frame optimized for Enduro and technical trails   - Boost148/110: stronger wheels, more tire clearance, shorter stays   - Exclusive suspension tech with ABP, Full Floater & RE:aktiv  - Straight Shot stiffness, Knock Block frame defense
Trek Session DH 27.5 Carbon Frameset
$2,499.99 $4,999.99 50% Savings
World Cup champion Session is proven to be the fastest downhill mountain bike. And with its amazing suspension, it’s the overall best downhiller the scene has ever seen. You need a bike that will not only withstand the brutal demands of downhill, but excel at them. You need a proven winner on the World Cup circuit. You need Session. Key Features - Fast 27.5 wheels get you down the mountain first - OCLV Mountain Carbon with Carbon Armor is downhill tough - Race Shop Limited: Pro-level bikes for the most discerning riders - Mino Link adjustable geometry lets you fine tune your ride
Trek Remedy 27.5 C Frameset
$2,999.99
Bring on bigger Remedy is the mountain biker's mountain bike. 27.5-inch wheels, an aggressive geometry, and a wealth of technical features make a bike that scores tens for capability. Want to push harder? Want more travel? Need a more capable build? Remedy is your full suspension ride to the next level. - Revolutionary new RE:aktiv with Thru Shaft damper: the most responsive shock available - Stout 150mm frame optimized for enduro and technical trails - Boost148/110: stronger wheels, more tire clearance, shorter stays - Straight Shot stiffness, Knock Block frame defense
Trek Superfly 6 WSD - Women's
$1,299.99 $1,839.99 29% Savings
You always hear about how fast Trek's Superfly WSD bikes are. Winning this race, crushing this course, making singletrack better! But that's only part of the story. On everyday rides and trails, you'll love Superfly WSD 6's light, efficient aluminum frame with proven G2 geometry, 100mm RockShox fork, and tubeless-ready Bontrager wheels and tires that roll over practically anything. SRAM adds a 2x10 drivetrain with a Type 2 derailleur so you have the gears for any terrain, and Shimano hooks you up with powerful disc brakes. Take all of this, along with reliable Bontrager controls, including a supportive women's-specific seat, and you have a completely capable trail machine that just also happens to be adept at winning.
Trek Procaliber 9.7
$3,599.99
Key features - Smooth IsoSpeed decoupler: ride faster, stronger, longer - Boost148/110: stronger wheels, more tire clearance, shorter stays - OCLV Mountain Carbon frame is fast, light, and trail tough - Ride the fastest wheel that fits with Smart Wheel Size
Haro Flightline One 27.5
$369.99
Haro's Flightline One 27.5 is ready to tackle any adventures you can find. At its core is a lightweight, durable aluminum frame that takes on rough trails easily. It's 27.5-inch alloy rims and Kenda tires roll easily over obstacles, but are nimble in the corners, too. The One also sports a suspension fork with enough travel to take the edge off bumpy terrain. You’ll always find the right gear with the easy-shifting 21-speed Shimano drivetrain, and the linear-pull brakes offer top-notch stopping power for maximum control and fun.
Trek Marlin 7 Women's
$749.99
Marlin 7 Women's is where race-worthy mountain bikes begin. The smooth, lightweight RockShox fork and widest range of gearing in the Marlin family make this model the best choice for new riders who want a cross country hardtail with great parts that will hold its own against Trek's higher-end race bikes. It's right for you if... You're new to the trail but have serious singletrack aspirations, and want a race-worthy mountain bike with touchpoints designed for women and upgrades on the parts that make a big difference in performance, like a higher quality suspension fork. The tech you get The flagship model of the Marlin lineup has a lightweight Alpha Silver Aluminum frame with internal derailleur routing to protect your cables and add to the bike's sleek look, a high-quality RockShox fork with a lockout feature and 100mm of travel, a 27-speed drivetrain, and a low-profile Shimano Shadow rear derailleur that's made to avoid snagging on trail debris. The quality fork and parts make Marlin 7 Women's fully capable of taking on off-road marathon rides and XC races. The final word The RockShox suspension and wider range of gearing make it the best choice in the Marlin lineup for new mountain bikers who know they want a serious bike for their money. Why you'll love it - All the value, plus all the versatility—it's a totally race-worthy mountain bike, with rear rack mounts if you use it for commuting too - It's really fun to ride and feels like a much more expensive mountain bike - Great suspension at an even better price - Like every model in the Marlin family, it's backed by Trek's lifetime warranty
Trek Skye SL Women's
$579.99 - $589.99
Skye SL Women's is a quality introductory women's cross country mountain bike with front suspension, a frame and parts designed specifically for women, 24 speeds, and a wide range of gearing that's great for terrain that varies in elevation. It's built in Trek's trail heritage, but also equipped with details like mounts for a rack, kickstand, and fenders that make it a great choice for daily commuters. It's right for you if... You're testing the waters of off-road riding, and want a real mountain bike at a great value with a wide range of gears to cover more ground on the road and trail. You also side with women who prefer the fit and feel of a bike made specifically for them. The tech you get: Skye SL Women's is equipped with a frame and touchpoints—like the saddle, bars, and grips—that can provide a better fit to women from the start. It has 24 speeds and a wide range of gearing, hydraulic disc brakes that feel smoother than mechanical disc brakes, and a Women's Rider Right suspension fork tuned for lighter riders with 100mm of travel and a lockout feature. The final word: The top-of-the-line model in the Skye Women's has performance features like suspension lockout, stronger double-walled rims, hydraulic disc brakes, and a frame and touchpoints designed for women. It's also equipped with rack and fender mounts and a wider range of gears. These design details make it a great choice if your mountain bike doubles as your commuter.
Trek Session 27.5 Carbon Frameset
$3,999.99
Going down? World Cup champion Session is built to win. An all-new OCLV Carbon frame, updated geometry, advanced air shock, and a stiffer chassis make this downhill race bike faster than ever. Session is the DH bike that excels on downhill's most brutal courses. Take on any terrain with our most advanced suspension and a geometry that can be dialed for every race. Key features: - Longer, more aggressive geometry keeps you attacking the whole way down - OCLV Mountain Carbon with Carbon Armor is downhill tough - Fine-tune your ride with Mino Link and an all-new adjustable headset system - Fast 27.5" wheels get you down the mountain first
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