Mountain Frames

The All-Around Fat Bike Wednesday sits in the middle of our Trail category, but don't let that fool you into thinking that's its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat tire trail bike that can truly handle anything you want to attempt. If you do an equal amount of off-road touring as you do hitting trails, Wednesday's ability to play both parts equally will suit you well. Or, if you're looking for a fat bike and don't need the fattest tires on the market, Wednesday's 26 x 4.6" tire clearance is just the ticket. "Any day of the week's a great day to ride a Wednesday." - Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles - Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders - Full-forward, short chainstay position: 26 x 3.8" tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6" tires on an 80mm rim Specs: - Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout - Rear Hub Spacing: 12 x 177mm (Surly axle included); 10 x 170mm with Surly 10/12 Adapter Washers (not included) - Front Hub Spacing: 15 x 150mm (Surly axle included) - Rear Brake: Disc - 51mm I.S. (203mm max rotor) - Front Brake: Disc - 51mm I.S. (203mm max rotor) - Head Tube: Ø44mm - Steerer Tube: Ø28.6mm (1-1/8") - Crown Race: Ø30mm (1-1/8") - Stock Headset Upper (S.H.I.S.): ZS44/28.6 - Stock Headset Lower (S.H.I.S.): EC44/30 - Front Derailleur (Clamp): High direct mount top-pull (Ø34.9mm) - Max Chainring (CL): 1x (Fat bike 170): 34T; 2x (Fat bike 170): 26/38T; 2x (Surly OD): 22/36T - Tire Clearance Frame: 26 x 4.3" (rear axle position); 26 x 3.8" (front axle position); 29 x 3.0" - Tire Clearance Fork: 26 x 5.25"; 29 x 3.0" - Rigid Fork Spec: 468 x 47mm - Max Suspension Fork Length: 511 x 51mm (Fatbike 100mm) - Bottle Mounts Frame: 2 Standard (XS - M); 3 Standard (L - XL) - Bottle Mounts Fork: 2 Three-Pack - Rack Mounts Frame: Yes (upper and lower threaded) - Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded) - Fender Mounts Frame: Yes - Other Features: Internal dropper post routing compatible

For fast XC riders and cross country mountain bike racers who want to cover a lot of ground fast, there's no better hardtail frameset than Procaliber SL. It's built with Super Light OCLV Mountain Carbon and delivers the unique trail-smoothing advantage of IsoSpeed, which takes the edge off fatiguing bumps in the trail so you can stay stronger longer. It's right for you if... You want to fly up climbs, rail the corners, charge through technical sections of trail, and win every sprint to the line. You have a dream XC build in mind, and you want to start with the lightest carbon hardtail frame we offer. The tech you get A superlight SL OCLV Mountain Carbon frame with Control Freak internal cable routing and trail-smoothing IsoSpeed. The Procaliber SL frameset includes a headset, and is designed for post-mount disc brakes and a PF92 bottom bracket. The final word Smoother. Lighter. Faster. Procaliber SL was built to win the XC game. The ultra-lightweight SL OCLV Mountain Carbon frame with IsoSpeed delivers serious performance for serious riders. Why you'll love it - This SL OCLV Mountain Carbon frameset is the ideal start to an obscenely lightweight cross country build - The IsoSpeed decoupler makes it ride smoother than any other hardtail, so your body doesn't get beat up by trail chatter - Control Freak Cable Management allows you to run any combination of cables exactly the way you want, while still giving you sleek looks and protecting your cables against unnecessary wear - Boost148 spacing on all frame sizes except S, which has a 142x12mm rear axle

Slash C Frameset is the ultimate starting point for your dream enduro race sled. Trail-tough OCLV Mountain Carbon tubes pair with 29-inch wheels to gobble up gnarly rock gardens, and Trek's exclusive RE:aktiv with Thru Shaft shock, and a Knock Block 2.0 integrated headset make it the ideal enduro frame for fast rides on gnarly trails. - RE:aktiv with Thru Shaft works faster than a normal shock, so it tracks the ground better and keeps you in control - A large internal storage compartment in the down tube lets you stow tools and gear - Mino Link lets you adjust the geometry, so you get both an enduro race bike and an ultra-capable trail bike in one - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius - We added a second down tube guard to better protect your frame from shuttle-related damage

Slash AL Frameset is the perfect platform for a fast 29er enduro or trail bike build. With a burly Alpha Aluminum frame, Trek's exclusive RE:aktiv shock, and a Knock Block 2.0 integrated headset, you have all the bones for a mountain bike that can handle everything from the biggest all-mountain descents to the most competitive enduro races. - It's equally at home between the tape and in the rugged wild—Yes, Slash is a race bike, but it's ridiculously fun on gnarly trail rides, too - A large internal storage compartment in the down tube lets you stow tools and gear - Mino Link lets you adjust the geometry, so you get both an enduro race bike and an ultra-capable trail bike in one - New, removable Knock Block has a bigger steering angle to keep cables and hoses safe without sacrificing turning radius

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

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. It's right for you if... You're after your own version of a holy grail mountain bike build. You know how you want to ride, and you know which parts you need to do it. You want the best all-around trail bike frame we offer, because you know that a great build starts with a great frame. The tech you get A full OCLV Mountain carbon frame with internal storage, 130mm of travel and Mino Link adjustable geometry, a FOX Factory Float shock with Trek's efficient RE:aktiv with Thru Shaft damper, and an included Bontrager Line Pro stem and Knock Block headset that prevents damage to the frame from spinning handlebars and fork crowns. Built for a PF92 bottom bracket and a 140mm fork. The final word A full OCLV Mountain Carbon frame and FOX Factory shock give you a major head start on a build that will be the envy of all other trail bikes. It's the best all-around option for riders who want a single versatile, high-performance ride that rips it up on every trail. Why you'll love it - 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 Wheel size: - Sizes X-Small – Small: 27.5-inch - Sizes Small – XX-Large: 29-inch

Slash AL Frameset is a hard-charging aluminum 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-inch front and 27.5-inch rear wheel, or go full 29er. The choice is yours. 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 setup or go true 29er - Internal frame storage means you've always got your tools, flat kit, and snack at hand

Ticket DJ is a lightweight, durable dirt jump mountain bike frame with a compact rear end and roomy top tube for major style, the best handling, and the biggest tricks. Horizontal sliding dropouts let you choose between a singlespeed or geared setup for a personalized ride. It's right for you if... You spend at least half your time in the air at the dirt jumps, skate park, or pump track. You want options for a singlespeed or geared setup on a durable, lightweight frame. The tech you get Ticket DJ Frameset gives you the basics and lets you run with them. The lightweight and durable Alpha Platinum Aluminum frame has horizontal sliding dropouts that enables a singlespeed or a geared setup, and its short chainstays allow you to pop off jumps. The final word Get it if you want a super-durable bike for dirt jumps, the skate park, or the pump track. It's at home in the air, and built in collaboration with the best slopestyle riders in the world: the Trek C3 Project. Why you'll love it - Trek C3 Project riders have helped to dial-in the geometry and features of this bike over years of collaboration, and the result is a highly refined ride that has helped to define the sport - Alpha Platinum Aluminum is light without compromising durability

As the first "plus" bike to hit the market, Krampus changed the way many people approach trail riding. It's shown people the light of how high-volume, large-diameter tires can vastly improve the ride experience. It's also done a bang-up job dispelling the myth that big tires make you slow. Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business. - Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension-corrected fork - Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though) - Clearance for 29 x 3" tires

Ticket S is a slopestyle mountain bike frame built for big tricks, big jumps, and a whole lot of style. Lightweight Alpha Platinum Aluminum and 100mm of rear travel with a FOX shock make it both durable and agile. It's the frame of choice for Trek C3 Project riders, and for good reason: they've built it over years of refinement and collaboration with our designers. It's right for you if... You want to hit jumps like the Trek C3 Project riders. You've got an appetite for the tricky stuff and want a flickable ride that's forgiving enough for hard landings. The tech you get Durable yet lightweight Alpha Platinum Aluminum with Mino Link adjustable geometry, 100mm of rear travel with a FOX Performance Flat SV shock to soak up big landings, and features inspired by Trek C3 Project riders like water bottle bosses on the down tube for shifter mounts and a bottom bracket bolt to keep the crank from spinning while you're in the air. The final word Get it if you want a slopestyle whip you can throw around on big jumps. It's at home in the air, and built in collaboration with the best slopestyle riders in the world: the Trek C3 Project. Why you'll love it - This bike has won every major slopestyle comp, several times over - Mino Link lets you make small adjustments to your geometry quickly and easily, even mid-ride - A tapered headtube, pressfit bottom bracket, and 142x12mm rear dropouts are ready for your dream build