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> Hardtail Mountain Bikes

Hardtail Mountain Bikes

Fast hardtail mountain bikes with everything you need to hit the trails. Trek's Smart Wheel Size makes sure that you ride the fastest wheel size that fits. Whether you're out riding with the kids or hitting some sweet trails, a hardtail will get you both up and down the mountain.

46 Results
Trek Marlin 7 - 2017/2018
$749.99
$749.99 - $829.99
Product Rating
 
5.0 stars
 (10 Reviews)

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… [more]

Trek X-Caliber 9 - 2018
$1,499.99
$1,579.99
Product Rating
 
5.0 stars
 (3 Reviews)

Full of fast, built to last Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5".… [more]

Trek Stache 7 - 2018
$2,099.99
$2,199.99
Product Rating
 
5.0 stars
 (3 Reviews)

Go big Stache is an all-new species of 29+ mountain bike performance. The wide 3" tires grip relentlessly, amplifying all the benefits of 29ers, while remarkably short chainstays deliver a fun, lively ride. Want the capability of a full suspension trail bike in a simple hardtail package, plus the… [more]

Trek Fuel EX Jr - 2018
$1,799.99
$1,889.99
Product Rating
 
5.0 stars
 (1 Review)

Trek Kids' mountain bikes are the real deal, with light frames, knobby tires, quality parts, durable construction, and Dialed adjustable components that can grow with young riders. Adventurous kids deserve a true, trail-ready bike that will take them down the road or off the road with confidence… [more]

Trek 820 WSD - Women's - 2018
$349.99
$379.99
Product Rating
 
5.0 stars
 (1 Review)

Our entry-level 820 mountain bike is a versatile step in the mountain direction, equally suited to beginner trails and potholed city streets. If you've heard the call of the trail but aren't ready to commit to the MTB life, 820 is the perfect way to get your feet dirty. Key features - Quality… [more]

Trek Marlin 4 - 2017
$399.99
$459.99
Product Rating
 
4.0 stars
 (3 Reviews)

Fishing for a great ride is easy with Trek's Marlin. Its super-light aluminum frame features the ideal geometry to deliver superior cornering, climbing, and descending. A set of go-fast knobbies keep you glued to the trail, and a 75mm-travel fork smooths the bumps, steering you through the roughest… [more]

Trek 820 - 2018
$349.99
$379.99
Product Rating
 
4.5 stars
 (85 Reviews)

Our entry-level 820 mountain bike is a versatile step in the mountain direction, equally suited to beginner trails and potholed city streets. If you've heard the call of the trail but aren't ready to commit to the MTB life, 820 is the perfect way to get your feet dirty. Key features - Quality… [more]

Trek Marlin 5 - 2018
$449.99
$489.99
Product Rating
 
4.5 stars
 (24 Reviews)

- 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 [more]

Trek Marlin 5 - 2017
$449.99
$529.99
Product Rating
 
4.5 stars
 (22 Reviews)

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… [more]

Trek Marlin 6 - 2017/2018
$529.99
$579.99 - $639.99
Product Rating
 
4.5 stars
 (14 Reviews)

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… [more]

Trek X-Caliber 8 - 2018
$999.99
$1,099.99
Product Rating
 
4.5 stars
 (8 Reviews)

Full of fast, built to last Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or… [more]

Trek X-Caliber 8 - 2016/2017
$899.99
$1,099.99
Product Rating
 
4.5 stars
 (7 Reviews)

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… [more]

Trek X-Caliber 7 - 2018
$849.99
$929.99
Product Rating
 
4.5 stars
 (5 Reviews)

Full of fast, built to last Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5".… [more]

Trek Stache 5 - 2018
$1,499.99
$1,579.99
Product Rating
 
4.5 stars
 (2 Reviews)

Go big Stache is an all-new species of 29+ mountain bike performance. The wide 3" tires grip relentlessly, amplifying all the benefits of 29ers, while remarkably short chainstays deliver a fun, lively ride. Want the capability of a full suspension trail bike in a simple hardtail package, plus the… [more]

Trek Superfly 6 15.5" - LAST ONE! - 2016
$1,299.99
$1,839.99
Product Rating
 
4.0 stars
 (3 Reviews)

You always hear about how fast a Trek Superfly is. It's winning this race, it's crushing this course, etc. But that's only part of the story. On everyday trails, you'll love the Superfly 6's light, efficient aluminum frame with G2 geometry, the 100mm RockShox fork, and the tubeless-ready Bontrager… [more]

Trek Superfly 6 - 2017
$1,499.99 - $1,699.99
$1,789.99
Product Rating
 
3.5 stars
 (5 Reviews)

The bike that defined 29er mountain bikes continues to lead the charge. The Superfly lineup of crazy-light aluminum XC rockets isn't just fast. It's the fastest. If going fast is everything you're looking for, choose the 29er with the longest history at the top of the podium. Superfly is the… [more]

Trek Superfly 26 - 2018
$949.99
$1,049.99

Kids' Superfly is a race-ready mountain bike inspired by Trek's super-fast adult Superfly. Quality trail components mean business, while the light, nimble frame keeps things fun. Superfly is THE bike for adventure-loving kids who are ready to meet challenging trails head on. Just don't be surprised… [more]

Trek Roscoe 8 Women's - 2018
$1,199.99
$1,259.99

Key features - 27.5+ mid-fat tires provide extra traction and confidence on every trail - All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Trail geometry and E2… [more]

Trek Skye Women's
$399.99
$439.99

Have fun. Get dirty. The Skye's the limit for how far this mountain bike will take you. Every detail, from women's-specific touchpoints to optimized wheel size, is designed to ensure a fun, wild adventure on the trail. However far you like to roam, Skye's confidence-inspiring ride will keep you… [more]

Trek Procaliber 6 Women's - 2018
$1,799.99
$1,889.99

The smarter hardtail Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC. Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an… [more]

Trek Stache Carbon Frameset
$1,499.99
$1,579.99

Stache is an all-new species of 29+ mountain bike performance. The wide 3" tires grip relentlessly, amplifying all the benefits of 29ers, while remarkably short chainstays deliver a fun, lively ride. Want the capability of a full suspension trail bike in a simple hardtail package, plus the extra… [more]

Trek Procaliber 6 - 2018
$1,799.99
$1,889.99

The smarter hardtail Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC. Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an… [more]

Trek Farley 7 - 2018
$2,399.99
$2,499.99

Key features - Fast-rolling 27.5" wheels with extra-wide 4.5" tires for traction in any conditions - Light, super-strong Alpha Platinum Aluminum frame - Trail-optimized geometry for stability and responsiveness in every season - E2 head tube for confident handling on gnarly trails [more]

Trek Stache 9.7 - 2018
$3,499.99

Go big Stache is an all-new species of 29+ mountain bike performance. The wide 3" tires grip relentlessly, amplifying all the benefits of 29ers, while remarkably short chainstays deliver a fun, lively ride. Want the capability of a full suspension trail bike in a simple hardtail package, plus the… [more]

Trek Procaliber 9.7 - 2018
$3,499.99

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 [more]

Trek Procaliber SL Frameset - 2018
$2,499.99

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… [more]

Trek Procaliber 9.7 Women's - 2018
$3,499.99

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 [more]

Trek Procaliber 8 - 2018
$2,099.99
$2,199.99

The smarter hardtail Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC. Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an… [more]

Trek X-Caliber 7 Women's - 2018
$849.99
$929.99

Full of fast, built to last Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity, and straight-up fun of an X-Cal hardtail in 29er or 27.5".… [more]

Trek Procaliber 9.8 SL - 2017
$4,299.99
$4,799.99

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… [more]

Trek Procaliber 9.6 - 2018
$2,399.99
$2,499.99

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 [more]

Trek Procaliber 9.8 SL - 2018
$4,499.99

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 [more]

Trek Superfly 24 - 2017/2018
$449.99
$489.99

Kids' Superfly is a race-ready mountain bike inspired by Trek's super-fast adult Superfly. Quality trail components mean business, while the light, nimble frame keeps things fun. Superfly is THE bike for adventure-loving kids who are ready to meet challenging trails head on. Just don't be surprised… [more]

Trek Roscoe 8 - 2018
$1,199.99
$1,259.99

- 27.5+ mid-fat tires provide extra traction and confidence on every trail - All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Trail geometry and E2 tapered head tube… [more]

Trek Skye SL Women's - 2017/2018
$529.99
$639.99

The Skye's the limit for how far this mountain bike will take you. Every detail, from women's-specific touchpoints to optimized wheel size, is designed to ensure a fun, wild adventure on the trail. However far you like to roam, Skye's confidence-inspiring ride will keep you smiling. Mountain biking… [more]

Trek Skye S Women's - 2017
$449.99
$529.99

The Skye's the limit for how far this mountain bike will take you. Every detail, from women's-specific touchpoints to optimized wheel size, is designed to ensure a fun, wild adventure on the trail. However far you like to roam, Skye's confidence-inspiring ride will keep you smiling. Mountain biking… [more]

Trek Procaliber 9.7 SL - 2016
$2,499.99
$3,499.99

World Cup-efficient and made to fly, Trek's Procaliber is a race-ready ride at home anywhere XC-speed is paramount. It boasts a full-carbon frame with Trek's IsoSpeed decoupler that basically makes this brutally fast rig not so brutal on you, since more comfort means more performance. Leading the… [more]

Trek Kids' Dual Sport - 2018
$449.99
$499.99

Trek bikes fit kids great, right from the start. And because Trek's Dialed components adjust along with growth spurts, you can dial in the perfect fit for years to come. Trek wants your kids to love riding just as much as they do. That's why their Kids' bikes ride better, last longer, and carry… [more]

Trek Procaliber 9.9 SL Race Shop Limited - 2018
$7,999.99

The smarter hardtail Procaliber sets the bar for hardtail speed and smarts. It's the fast, ultralight cross country ride that rules the singletrack, from the local race scene to the World Cup XC. Procaliber's innovative IsoSpeed decoupler delivers uncompromising XC performance, efficiency, and an… [more]

Trek Skye Women's - 2017
$399.99
$459.99

The Skye's the limit for how far this mountain bike will take you. Every detail, from women's-specific touchpoints to optimized wheel size, is designed to ensure a fun, wild adventure on the trail. However far you like to roam, Skye's confidence-inspiring ride will keep you smiling. Mountain biking… [more]

Trek Superfly 6 Women's - 2017
$1,699.99
$1,789.99

The bike that defined 29er mountain bikes continues to lead the charge. The Superfly lineup of crazy-light aluminum XC rockets isn't just fast. It's the fastest. If going fast is everything you're looking for, choose the 29er with the longest history at the top of the podium. Superfly is the… [more]

Trek Roscoe 7 Women's - 2018
$999.99
$1,099.99

Key features - 27.5+ mid-fat tires provide extra traction and confidence on every trail - All-new Alpha Gold Aluminum frame blends the latest tech with light weight - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Updated geometry and E2 tapered… [more]

Trek Farley Alloy Frameset - 2017
$599.99
$899.99

Super, fat Farley changes the game for fat bikes. With lightweight carbon or alloy frame options and the ability to accommodate 5" tires and a variety of wheel sizes, Farley is the quickest and most versatile fat bike ever. Fat bikes give you more places, more seasons to ride. From dunes to drifts,… [more]

Trek Skye S Women's - 2018
$449.99
$489.99

Have fun. Get dirty. The Skye's the limit for how far this mountain bike will take you. Every detail, from women's-specific touchpoints to optimized wheel size, is designed to ensure a fun, wild adventure on the trail. However far you like to roam, Skye's confidence-inspiring ride will keep you… [more]

Trek Roscoe 7 - 2018
$999.99
$1,099.99

Key features - 27.5+ mid-fat tires provide extra traction and confidence on every trail - All-new lightweight Alpha Gold Aluminum frame delivers a phenomenal ride quality - Shorter chainstays and Boost141 hub spacing for increased agility and clearance for wider tires - Updated geometry and E2… [more]

Trek Marlin 4 - 2018
$399.99
$439.99

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 [more]

46 Results
 
Chain Reaction Bicycles is your local bicycle shop for the San Francisco Bay Area! Unlike some other shops, we are dedicated 100% to serving the needs of local cyclists; our offerings are exclusively available for in-store pickup. You will find us at 1451 El Camino Real, Redwood City CA, 94063. 650 366 7130. Our Los Altos location closed on September 24th, 2017; we have consolidated all operations within our Redwood City flagship store.  Our hours and directions may be found here. We look forward to taking care of all of your cycling needs, including service! Mike & Steve Jacoubowsky, Partners, Chain Reaction Bicycles. Serving you since 1980!