The Stumpjumper 15 Expert is here, ready to eliminate any compromises in trail riding. Does it tackle trail obstacles like a big bike? Check. Does it possess the control, playfulness, and efficiency of bikes with less travel? Double check. And what about adjustable settings that allow you to perfectly tailor your bike to your needs and riding style? Check, check, check. EVEN MORE CAPABLE: Our new GENIE shock technology combines a playful and jump-friendly ride with the downhill capabilities of enduro bikes. EVEN MORE CONTROL: The Stumpjumper 15 features better traction properties than our "Bike of the Year," the Stumpjumper EVO. ENDLESSLY CUSTOMIZABLE: It offers six different geometry settings, mullet or full 29er configurations, adjustable spring curves, and much more. GENIE MEETS ALL EXPECTATIONS: Our latest innovation, GENIE, is an air shock technology that fulfills the top three desires of our riders: an almost "impervious" air shock with the smooth feel of a coil spring – plus ultra-fine adjustability. THE BEST OF BOTH WORLDS: GENIE combines the linear spring rate of a coil spring for the first 70% of the travel with the progressive spring rate of an air spring for the last 30%. This maximizes control and prevents bottoming out. GENIE delivers the best of both worlds – coil and air spring – along with tuning options. Say goodbye to compromises. The future of trail riding starts now. BETTER SHOCK FORCE MANAGEMENT: With 16.3% improved shock force management compared to conventional air shocks, GENIE in the Stumpjumper 15 makes it ride as if it has much more travel. For example, both the Stumpjumper 15 with 145 mm rear and our Enduro with 170 mm use 101 mm of travel to absorb a shock force of 1080 N. MORE TRACTION: Detailed lab and trail tests have shown that the Stumpjumper 15 with GENIE has 57% better traction properties than a conventional air shock. Our new GENIE technology offers you the smooth performance of a coil spring, ensuring more rear wheel contact on average than a standard air shock. Your power is better transferred, providing you with superior control. LESS BOTTOMING OUT: The harder the hits, the more the "silent reserve" of GENIE shows its full potential: in the last 30% of travel, the damping resistance increases progressively, reducing potential bottoming frequency and intensity. PROGRESSIVE TRAIL GEOMETRY: The geometry of this bike delivers big bike virtues on demand, a nimble steering feel in tight sections, and an incredibly efficient climbing performance. The central, spacious cockpit centers the rider for optimal traction and cornering control. The low bottom bracket, slack head tube angle, and optimized fork offset provide easy balance even in challenging terrain, thanks to enhanced stability. A FRAME FULL OF POSSIBILITIES: Six individual settings allow riders to perfectly adjust the ergonomics and efficiency of their bike according to their preferences and terrain. Head angle and bottom bracket height can be altered for the optimal center of gravity or necessary ground clearance. MULLET OR FULL 29ER: Big wheels for better rollover and more momentum, or a smaller rear wheel for increased playfulness? The choice is yours. If you want to change the combination, we offer the appropriate link in our shop. And don't worry, geometry and ride characteristics remain the same. SWAT BOX: The ingenious SWAT™ Box 4.0 in the downtube provides a wind-, weather-, and crash-resistant compartment in the Stumpjumper 15, now even more securely integrated.