Mountain Frames

The Karate Monkey frame features updated, progressive trail geometry, a new tubeset, and Surly’s Gnot-Boost rear dropout system to support multiple drivetrain and wheel size configurations. - 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle and 44mm headtube - Tubeset uses the same trumpet tubes found on Instigator 2.0 frame - Adjustable rear dropouts with 145mm Gnot-Boost spacing works with 142 x 12, 148 x 12mm, and 135mm w/ 10/12 washer - Internal dropper seatpost routing - 30.9mm seat tube ID - Clearance for 29 x 2.55 or 27.5 x 3 tires

Fuel EX C is the ideal start for a dream trail bike with a full OCLV Mountain Carbon frame that has 130mm of rear travel with a Fox Factory RE:aktiv Thru Shaft shock. Build it up light and fast or make it a beefy bruiser that's ready for some extra chunk. It's up to you. - A full OCLV Mountain Carbon frame makes for a ride that's light on the climbs and trail-tough on rough descents - RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control - This bike is perfect for shredding singletrack, hitting drops, and pushing your limits in multi-stage and marathon events - A sleek internal storage compartment gives you a versatile spot to stow tools and gear - We expanded our size range from XS through XL to ensure a better fit for all riders

While the rest of the industry was mucking about with 29" DH bike prototypes for professional mountain bike racers, we brought the party to the people with our first production 29er downhill bike. The Session C 29 frameset pairs fast-rolling 29er performance and our proven downhill frame technology. It's long, stable, and aggressive, with a geometry dialed for your fastest runs ever. It's Right for You If... You need speed. You live for it. You dream about it. And, when you're on the mountain, you're gonna get after it. You want faster-rolling 29" wheels, a carbon frame, and the latest DH tech out there. The Tech You Get Session 29 is built with ultra-light and ultra-durable OCLV Mountain Carbon, 190mm rear travel with a RockShox Super Deluxe Ultimate DH shock, Carbon Armor, and integrated frame protection like built-in bumpers for a double-crown fork. Plus, it has frame tech that lets you dial your geometry, like Mino Link and the included fixed-angle headset cups. The Final Word This is the fastest downhill bike we make. This 29er-optimized carbon ride is great for rolling over the rough stuff and getting to the finish line with plenty of time to spare. - Rear suspension: RockShox Super Deluxe Ultimate DH, 225x70mm - Weight: M - 3.24 kg / 7.14 lbs - This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg)

Procaliber frameset is a race-worthy carbon cross country mountain bike frame that's light, fast, and built to win. It has the unique advantage of IsoSpeed, a decoupler at the top tube/seat tube junction that gives you more compliance on rough trails for a smoother, faster ride. It's right for you if... In group trail rides and XC races, you lead the pack. You're looking for the performance edge that comes with a lightweight carbon frameset with exclusive IsoSpeed technology that smooths out trail chatter so you can stay stronger longer. The tech you get A lightweight OCLV Mountain Carbon frame with IsoSpeed, a tapered head tube, and internal control routing that's super easy to use. Procaliber frameset includes a Knock Block headset, and is designed for a 100mm fork, up to 2.4" wide tires and 1x drivetrains with up to a 36-tooth chain ring. Built for a PF92 bottom bracket, post-mount disc brakes, and Boost148 wheels. The final word A lightweight carbon mountain bike frameset built to perform in XC races and blazing fast group rides. It's nimble, quick on climbs, and responsive in and out of corners. Best of all, it delivers a massive advantage in speed and comfort with the trail-smoothing IsoSpeed decoupler. Why you'll love it - OCLV Mountain Carbon is race-light and trail-strong - The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beat up by trail chatter - New internal control routing is super easy to use thanks to built-in channels that guide your hose or housing easily through the frame - You get a Straight Shot downtube for extra-stiff, responsive handling without added weight, and a Knock Block headset that protects against spinning bars and fork crowns

Farley C is an OCLV Mountain Carbon fat bike frameset for four-season shredders who know fat bikes can be fast, high-performance machines—despite their oversized appearance. Our lightest fat bike frameset includes a Bontrager Haru carbon fork and is built to accommodate 26x5" or 27.5x4" wheels. It's right for you if... You don't want to ride trails in winter, you want to fly across them. Whether you're building up a lightweight ride for fat bike racing or just looking for a winter bike that performs just as well as your XC or trail bike, there's no better place to start than right here. The tech you get A lightweight OCLV Mountain Carbon frame with adjustable horizontal sliding dropouts, suspension-corrected OCLV Carbon Bontrager Haru Pro fork, and FSA headset. Rear thru-axle dropout is 197mm, fork thru-axle dropout is 15x150mm. The final word Four-season speed. Farley C is the perfect starting point for a lightweight build that's quick and capable in all kinds of weather. Why you'll love it - The faster you ride a fat bike, the more fun it gets—and this bike is a lot of fun - It's a four-season freedom machine that lets you ride outside all year long - You can run your choice of wheels with 26x5" or 27.5x4" tires

Stache Carbon frameset is the perfect performance upgrade for fun-loving shredders who appreciate the confidence and stability of the 29+ mid-fat platform. Super-short chainstays, horizontal sliding dropouts, and our OCLV Mountain Carbon technology make this frame the fastest way to more fun on the trail. Features: 29+ - 29+ is a wider 3" tire that grips relentlessly while floating over terrain. Yet it delivers all the 29er benefits you know and love, like greater momentum and improved rollover. OCLV Mountain Carbon - Trek's mountain-specific carbon fiber is tougher carbon, with unique materials and layup procedures, Trek's advanced engineering, and a higher standard of testing.

1120 frameset is a bikepacker's dream. The rugged all-terrain frame is made for 29+ tires, has loads of mounts for gear, and can run a dropper post. Build it up exactly as you want, and explore the most extreme backcountry destinations in the farthest reaches of the world. It's right for you if... You live for freedom, value self-reliance, and want to build up an awesome bikepacking and off-road touring bike that'll take you places other bikes simply can't. The tech you get Aluminum frame with adjustable rear horizontal sliding dropouts, mounts for our proprietary rack system, and internal derailleur and dropper post routing. Plus, an FSA headset. Made for Boost148 29er wheels and 12mm thru axles. The final word This is the frame to get if you want to build a bike for big adventures. Every part of 1120 is made for better bikepacking and built to take on the burliest trails you can find. Why you'll love it - This boundary-expanding bike is ready to be spec'd for however you love to adventure - Our 1120 rack and durable harness system (sold separately) make it easy to secure 8L bags on the rear rack and additional gear up front for the best packing balance - So many mounting features let you set up your ideal expedition ride as you see fit - It's also an awesome mountain bike — if you're looking to tear up some singletrack, just pull off the racks - The horizontal sliding dropout lets you dial in your geometry and easily convert to singlespeed if your derailleur busts out in the wild

Top Fuel C is a carbon full suspension frameset made for a super-fast and fun down-county build that flies down technical descents and speeds through climbs and flowy sections.  WHY YOU'LL LOVE IT - The full carbon frame gives you a light, responsive ride - If you're looking to build up a lightning-fast, super versatile trail bike, this is exactly where you should start - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A sleek internal storage compartment gives you a versatile spot to stow tools and gear - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius IT'S RIGHT FOR YOU IF… You want to build up a quiver-killing bike that crushes all sorts of terrain. You know you want to start with a high-performance carbon frameset, and plan to spec it out as a mid-travel trail ripper. THE TECH YOU GET A lightweight and trail-tough full OCLV Mountain Carbon frame with Mino Link adjustable geometry, an internal storage compartment, a 120mm Fox Factory Float shock with 3-position DPS damper and buttery-smooth Kashima coating, Knock Block 2.0 headset, Bontrager Elite 35mm stem, and internal cable routing. Designed for a 120mm fork, but can handle up to 130mm of fork travel. Fits 2.4" tires. THE FINAL WORD Top Fuel C is light, nimble, and fun. This OCLV Mountain Carbon frameset is ideal for building up the fast, efficient, and all-around awesome trail bike of your dreams.

Slash C Frameset is a hard-charging carbon enduro frame that's ready for your dream build. It gives you the trail-crushing geometry you crave, plus a high pivot design that helps you punch up square-edge climbs and stay planted on rowdy descents. It's equipped with a 170mm RockShox Super Deluxe Select+ rear shock and designed for a 170mm fork of your choice. Set it up MX with a 29" front and 27.5" rear wheel, or go full 29er. The choice is yours. It's right for you if... Enduro days are in your forecast, and you want to build up the ultimate capable carbon steed to rally through them. You want a bike with plenty of travel for soaking up drops, and capability for punching back up to the top for more. You're a fan of versatility, and like that you can tweak the geometry and choose the best wheel size for you. The tech you get An OCLV Mountain Carbon frame with high pivot design and idler pulley, plus internal storage. 170mm of rear travel from the RockShox Super Deluxe Select+ rear shock, and all the adjustability and customization you can dream of. The final word If you're chasing big trail days and want a carbon ride that can handle it all, Slash C is the frameset for you. You get major capability from enduro to backcountry and can customize it however you want. The world is your oyster. Why you'll love it - The world is your oyster – you can equip this Slash frameset with just about any build you can dream of - Its high-pivot suspension gives you insane control for hairy descents, while carefully tuned anti-squat and oversized pulleys make pedaling astonishingly efficient - You have full control of your ride feel with suspension progression adjustment and optional adjustable angle headset cups - You get the flexibility to roll with either an MX 29in front and 27.5in rear-wheel or go true 29er - Internal frame storage means you've always got your tools, flat kit, and snack at hand

Session AL frameset gives you an awesome foundation for building up your ideal downhill machine. The new high-pivot suspension design keeps you nimble, planted, and blazing fast on even the most punishing runs, and burly alloy construction rolls with the punches on gnarly and technical trails. - New suspension layout with a high pivot and idler pulley increases traction, carries more speed, and reduces pedal kickback for more stability - Virtually zero pedal kickback means you’ll stay confidently planted and in control during descents—especially when landing jumps or drops - The high pivot design delivers a more efficient rearward axle path so you’ll carry more speed and your wheel won’t get hung up on obstacles - Adjust your suspension progression by flipping the lower shock mount chip—20% for plush park rides, 25% for racing efficiency - Our new DH sizing system is based on reach, not rider height, which is the most important factor in a great downhill bike fit

Farley AL is a high-value platform for your fat bike build. This lightweight Alpha Platinum Aluminum fat bike frameset has the ride characteristics of a traditional trail bike, with all the monster truck capability that comes with fat bike tires. Plus, you get tons of mounts for adding accessories like racks, fenders, and gear cages. - All the mounts make it easy to add accessories and customize Farley for how you want to roam. - It's a four-season freedom machine that lets you ride outside all year long. - You can run your choice of wheels with 26x5" or 27.5x4" tires.