The Chisel Comp gives you everything you need to reach the top of the podium at a price that doesn't break the bank. Ultralight aluminum frameset that's stiff in all the right places, yet surprisingly compliant? Check. Stellar components? Check. Dialed geometry, that's nimble yet confident? Check, check, and check. PRO-LEVEL PERFORMANCE MADE AFFORDABLE We asked ourselves, How do we bring pro-level performance down to a price more riders can afford? D'Aluisio Smartweld Technology was the answer. Smartweld allows us to create the most consistent, high-strength welds possible while taking full advantage of compliant, ultralight alloy tubes. XC-FAST AND TRAIL-BIKE CAPABLE Cross-country courses have grown more technical, so why we gave the Chisel a dose of trail bike DNA. The Chisel's longer top tube, shortened head tube, and slightly slack front end increase its downhill stability without sacrificing its climbing ability. Light, stiff, and durable, the premium M5 alloy frame is the perfect racing platform. RockShox Judy Gold 29 fork, complete with lockout and adjustable rebound damping. SRAM's SX Eagle 1X drivetrain gives you the gearing you need to tackle any climb. - Given its light weight and ultra-stiff characteristics, M5 aluminum was the natural choice for the Chisel’s frame. And when complemented with our speed-focused XC 29 Geometry, D'Aluisio Smartweld technology, and internal cable routing, you get a bike that compromises nothing in delivering explosive speed, confident handling, and hassle-free maintenance. - Rocks and bumps are soaked up by the RockShox Judy Gold 29 fork. It features proprietary technology from RockShox, like its Solo Air spring, that maintains an ideal equilibrium, as well as being one of the lightest air springs on the market. - SRAM's 12-speed SX Eagle drivetrain, with its 11-50t cassette, provides a wide gear range that lets you spin up the climbs, yet have plenty of top end for the descents. One-by setups also decrease weight and make it next to impossible to drop a chain.
Don't worry, S-Works doesn't get to have all of the fun—the new Stumpjumper Comp Carbon 27.5 features the same frame with a full 11m carbon chassis and rear-end as its older brother, but with a solid list of no-fuss components, including a SRAM NX Eagle 12-speed groupset, for an everyman's budget. Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials, shapes, and the layout. We started by creating our own mountain-specific stiffness test, and then we looked at the layout with Finite Element Analysis (FEA) to see where we could get the biggest stiffness improvements. This led to a big discovery: The Large and X-Large frames needed more front-end stiffness while the Smalls and Mediums were just fine. We were able to create a frame design that was 20% more efficient. And in the end, this proved to be one of the lightest trail frames on the market today. When designing the frame with the stiffness targets being a main goal, we developed a radical new sidearm design. The front-end and rear-end are connected at three points, and the sidearm helps keep all these points super stiff and connected, all while taking about 100 grams out of the rear-end. More explicitly, this minimizes frame flex when the rear suspension is active. We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension. Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0" tire. You're also free to run whatever aftermarket rear shock you want since we're using standard metric shocks. We revamped the SWAT box, too, making it sleeker, lighter, and with more volume. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain. Lastly, we seriously couldn't make cable routing any easier on carbon models. Full tubes can be found throughout the carbon frame, so all you have to do is push the cable and it'll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in. The build on this Comp model comes with a list of components that deliver undeniable quality, like a 12-speed SRAM NX Eagle drivetrain, SRAM Guide R disc brakes, FOX front and rear suspension, and Roval Traverse 27.5 wheels. - The Stumpjumper's asymmetrical, FACT 11m carbon fiber construction is lightweight, stiff, and ready to take on the trail. It's built off our 27.5 Trail Geometry, so it's just the right amount of both capable and comfortable. And with SWAT integration in the down tube, a threaded BB, easy cable routing, and an all-new chain silencer, it's ready for anything the trail, or you, throw at it. - The FOX DPS Performance rear shock features our Rx Trail Tune, ensuring that no matter the wheel or frame size, your bike is dialed-in perfectly. - SRAM's 12-speed NX Eagle groupset features a wide gear range that delivers climbing and descending efficiency in spades.
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