Beargrease pairs a race-ready carbon frame with the capability of fat tires for the ultimate groomed-trail machine. Its trail geometry, dropper post, and 27.5" wheels grant you confidence in loose corners and descents and make for an all-season ripper. Frame and fork mounts for extra bottles and cargo make it easier to gear up for your long days out or even overnighters, and the high-performance XT/SLX drivetrain is the icing on the cake. For light-and-quick confidence on any terrain, Beargrease is one of the best carbon fat-tire bikes out there.

The Salsa Heyday! C Deore 12 is a carbon fat-tire bike with the versatility to go wherever your imagination takes you. The carbon-fiber frame keeps weight down — especially nice when you're hefting it over downed trees deep in the backcountry. The 26 x 4.6" tires float over snow, sand, and other soft surfaces, but you can also fit 27.5 fat and 29+ wheels and tires for other missions. A mind-blowing number of cargo and accessory mounts let you bring more than just the bare necessities, and Mukluk's geometry ensures a stable ride even when loaded. Alternator 2.0 dropouts allow for multiple drivetrain options, but the stock Shimano Deore 12-speed is the perfect place to start.

We know you have a "dream build" list hidden away somewhere. Now’s the time to bring it to life on the Blackthorn Aluminum frame. This versatile all-mountain bike frame comes with a RockShox Super Deluxe Select + shock for 140mm of rear travel. Our tried-and-true Split Pivot suspension design offers a supple, supportive ride with incredible pedaling efficiency so you can take on a huge variety of trails. Start with the best all-mountain bike frame out there, hang your favorite components on it, and let it rip.

The Cassidy Alloy Frame gives you the confidence to seek out the steepest, most technical trails out there. Its stiff and durable aluminum frame stands up to trail punishment, whether you're enjoying a full day of shuttle runs, barreling through rugged rock gardens, or hitting drops and gaps. 165 mm of Split Pivot rear suspension offers progressive travel for the stoutest trails, with superior pedaling efficiency and consistent braking traction to boot. Build it up and go big.

See You At The Bottom Even though Jekyll boasts a unique combo of go-fast tech that's never been seen before, it's not a bike that talks. It's a bike that goes. Where it thrives Steep, fast, rowdy mountains What it's built for Enduro racing, bike park sessions, high-speed mobbing Highlights - Full carbon frame, 165mm travel, Proportional Response Tuned - Fox Float Factory X2 Shock - Guidler-Idler pulley/chainguide system Descend into Greatness It's a hell of a climber but come on. Jekyll was born for the downs. Every part of it crafted for the sweet embrace of speed, every element designed to help you wring a bit more of velocity's nectar from those steep, chunky, high pucker lines you love. Best. Suspension. Ever. 4-bar meets high pivot meets idler pulley meets size-specific kinematics. For real. If you're not up for suspension buzzword bingo, just know that it grips, floats, and pedals like nothing else. It's always up for getting down. The Gravity Cavity The shock tucks cleanly into the twin spar downtube, keeping the bike's center of gravity as low as possible. Wicked stability, instant line changes and one-of-a-kind looks. Built for You Well, not you specifically. But someone just like you. With our Proportional Response design, everything—from the suspension layout to the geometry, even the length of the chainstays—is completely customized by size, for performance built just for you. Suspension Like No Other High main pivot gives it a bump-swallowing rearward axle path. The Guidler pulley kills the pedal kickback of high pivot systems. The 4-bar linkage keeps braking smooth, traction high and pedaling crisp. Guidler Idler pulley + chainguide = Guidler. Clever, right? Idler eliminates feedback from the high pivot swingarm, keeping your pedal stroke smooth, even when the terrain isn't. The guide, well, it guides. Suspension Built For You A rider's center of gravity drives how the suspension performs, yet most bikes use the exact same layout for all sizes. Proportional Response Suspension alters the design by size for truly next-level performance. Proportional Response Geometry Long, slack and low—and fully size-specific. As the front of the bike gets longer with each size, the chain stay length increases proportionally, keeping the rider centered between the wheels for true "made for you" handling. Guardhouse Downtube protector keeps your frame safe from roost and strikes, while letting water and debris pass through. The Ai Advantage Our Ai Offset Drivetrain delivers more tire and mud clearance in the swingarm, and more even spoke angles for a stiffer, stronger rear wheel.

The Timberjack Ti absolutely owns all paths — wooded, skinny, and flowy, making you the master of every ride thanks to its multi-talented character. The frame is constructed from custom, top-shelf titanium with a fast-handling geometry to deliver the stiffness needed to whip through tight turns and accelerate with instant power, while super-short chainstays make it easy to lift over obstacles so you can stay with the flow. Run it as a 27.5+ with up to 3-inch tires for maximum fun, or go for efficiency with a 29er wheelset — with Salsa's Alternator Dropouts you get an impressive grip of wheelset and drivetrain options to suit your style and intention.

Shred hard and shred fast with this lively 29er. it’s built on an all-new full-composite frame with adjustable geometry, giving you smooth control to blitz technical trails at speed. ADJUSTABLE FRAME GEOMETRY - New flip chip feature lets you change the head tube and seat tube angles, as well as the bottom bracket height, to fine-tune handling for varying trail conditions and individual riding style. 29ER CONFIDENCE AND CONTROL - Larger 29-inch diameter wheels optimized to roll over rough terrain with balance and stability, giving you the momentum to tackle technical climbs and the confidence to fly on fast, rugged singletrack descents. PROGRESSIVE TRAIL DESIGN - Lightweight Advanced-grade composite frameset features a longer reach and steeper seat tube for aggressive trail riding and improved climbing capabilities. Updated Maestro rear suspension features 120mm of rear wheel travel paired with a 130mm fork up front. ADVANCED COMPOSITE TECHNOLOGY - Giant’s High Performance Grade raw carbon material is used to produce this custom frame material in our own composite factory with a high stiffness-to-weight ratio. The front triangle of these framesets is assembled and molded as one continuous piece in a proprietary manufacturing process called Modified Monocoque Construction. ADVANCED FORGED COMPOSITE TECHNOLOGY - A state-of-the-art high-pressure molding process is used to produce complex-shaped carbon fiber components that are lighter, stiffer and stronger than similar components made from aluminum. This technology is used in critical performance parts such as Maestro Suspension rocker links. FLIP CHIP - MAESTRO - The flip chip allows riders to quickly adjust the geometry of their Maestro-equipped mountain bike to better suit how and where they ride. It lets riders change the headtube/seattube angles and bottom bracket height via eccentric (offset, two-position) hardware located on the upper rocker arm. MAESTRO SUSPENSION TECHNOLOGY - Four strategically positioned pivot points and two linkages all work together to create a single floating pivot for the most active, efficient and independent suspension system on the trail. OVERDRIVE - Giant’s original oversized fork steerer tube technology. Designed to provide precise front-end steering performance, the system’s oversized headset bearings (1 1/4” lower and 1 1/8” upper for road, 1 1/2” lower and 1 1/8” upper for mountain) and tapered steerer tube work in conjunction to provide optimal steering stiffness.

The Horsethief Carbon Frameset is where your dream trail bike begins. The Horsethief frameset can be built with either 29-inch or 27.5-plus wheels, and the flip chip allows for subtle geometry tweaks. The Split Pivot rear suspension technology and 120mm Fox Float DPS Performance Elite shock are a recipe for incredible small bump compliance and traction. With this solid foundation in place, just add the parts that make you happy—we can’t wait to see what you do with it.

Given the choice between clearing challenging lines and taking them on with gusto, you prefer the latter. If this sounds like you, the Rustler Carbon frame is the perfect platform for your ultimate trail bike build. The Split Pivot rear suspension system with a Fox Float DPS Performance shock, flip chip geometry adjustment, and 27.5 x 2.3–2.8-inch tire clearance let you build the bike that suits your playful style. Get excited for a trail-roosting rig with impeccable pedaling efficiency—a surefire recipe for fun on many trails.

Spearfish was designed under a simple premise: that efficiency and precision result in speed. Whether pursuing an ultra-endurance record or working to keep the hard chargers off your back on local training laps, Spearfish’s efficient Split Pivot suspension design rewards the rider. The lightweight carbon frame and 100mm Fox Float DPS Performance Elite shock provide a platform for the ultimate progressive XC bike. Eliminate excuses with Spearfish.