The 2019 Specialized Stumpjumper Expert Carbon is a longtravel, full suspension 27.5 wheelmountain bike, built for the trail with 12 speedgearing & a stiff full carbon frame. The Stumpjumper Expert 27.5 has a radical new frame design thats so agile, lively, & in-tune with the trail, the bike feels like an extension of your body. Seriously, its going to make you rethink how a trail bike should ride. Specializeds design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. & it turns out that this feeling all comes down to stiffness. Think of it this way: when the frames telling your hands one thing & your feet another, your brain gets confused with the imbalance & the bike feels unstable. In order to fix this, they had to get to work on dialing-in the materials, shapes, & the layout. Specialized created their own mountain-specific stiffness test, & then looked at the layout with Finite Element Analysis (FEA) to see where the biggest stiffness improvements could be made. This led to a big discovery: The Large & X-Large frames needed more front-end stiffness while the Smalls & Mediums were just fine. Specialized were able to create a frame design that was 20% more efficient. & in the end, this proved to be one of the lightest trail frames on the market, today. When designing the frame with stiffness targets being the main goal, Specialized developed a radical new sidearm design. The front-end & rear-end are connected at three points, & the sidearm helps keep all these points super stiff & connected, all while taking about 100 grams out of the rear-end. More explicitly, this minimizes frame flex when the rear suspension is active. The Stumpjumper has a custom Rx Trail Tune on both the fork & rear shock. Suspension performance is highly dependent on frame, wheel, & rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, & 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— 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, & room for up to a 3.0" tire. Youre also free to run whatever aftermarket rear shock you want since were using standard metric shocks. A revamped SWAT™ box, too, making it sleeker, lighter, & with more volume. Customization is furthered with a Flip Chip that lets you dial-in your Stumpy to your riding style. Switch it from High to Low & it drops your bottom bracket 6mm & 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 & nearly silences the drivetrain. Lastly, you 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 & it’ll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in. For the build, you get a solid components package with a full SRAM GX1 Eagle drivetrain, SRAM Guide R disc brakes, Rock Shox front & rear suspension (150/150mm of travel respectively), & Roval Traverse Carbon 27.5 wheels. This Bike Is Perfect For The trail rider that wants lightweight & diverse performance from their bike & brand new exciting technology that you wont find from any other br&. The 2019 Specialized Stumpjumper Carbon Expert is perfect for trail riding of all kinds, from your local trails to trips to the mountains, the Stumpjumper is the ultimate trail bike. Key Features The Stumpjumpers asymmetrical, FACT 11m carbon fiber construction is lightweight, stiff, & ready to take on the trail. Its built off 27.5 Trail Geometry, so its just the right amount of both capable & comfortable. & with SWAT™ integration in the down tube, a threaded BB, easy cable routing, & an all new chain silencer, its ready for anything the trail, or you, throw at it. With three different compression adjustments—open/pedal/lock—incredible damping performance, & the Rx Trail Tune, the Rock Shox Deluxe RT3 perfectly complements the Stumpjumper. Rock Shoxs Pike is known for its trail performance, & the RC found here has stiff stanchions, a Charger damper, & plenty of sensitivity.