The Stumpjumper 15 Expert is here and ready to eliminate any compromises in trail riding. Does it handle rough terrain like a big bike? Check. Does it have the control, playfulness, and efficiency of bikes with less travel? Double check. And what about a range of adjustment options so you can tailor the bike perfectly to your style and preferences? Check, check, check. EVEN MORE COMPETENT: Our new GENIE damper technology combines a fun and playful ride with the downhill capabilities of enduro bikes. EVEN MORE CONTROL: The Stumpjumper 15 boasts better traction characteristics than our "Bike of the Year," the Stumpjumper EVO. ENDLESSLY CUSTOMIZABLE: Six different geometry settings, mullet or full 29er options, tunable spring rate, and much more. GENIE LEAVES NO WISH UNFULFILLED: Our latest innovation, GENIE, is an air damper technology that fulfills the three biggest wishes of our riders: an almost "bulletproof" air damper with the smooth feel of a steel spring—plus ultra-fine adjustability. THE BEST OF BOTH WORLDS: GENIE combines the linear spring rate of a steel spring in the first 70% of the stroke with the progressive spring rate of an air spring in the last 30%. This maximizes control while preventing bottom-outs. GENIE offers the advantages of both steel and air springs along with tuning possibilities. Say goodbye to compromises. The future of trail riding starts now. IMPROVED IMPACT FORCE MANAGEMENT: With 16.3% better impact force management compared to conventional air-sprung dampers, GENIE ensures that the bike feels like it has much more travel. For example, the Stumpjumper 15 with 145 mm of rear travel and our Enduro with 170 mm both utilize 101 mm of travel to absorb an impact force of 1080 N. MORE TRACTION: Extensive lab and trail testing have shown that the Stumpjumper 15 with GENIE provides 57% better traction characteristics compared to a conventional air-sprung damper. Our new GENIE technology offers the smooth performance of a steel spring, which typically results in more rear wheel contact with the ground than a standard air damper. Your forces are better transferred, giving you more control. LESS BOTTOM-OUTS: The harder the hits, the more the "silent reserve" of GENIE realizes its full potential: In the last 30% of the travel, the damping resistance increases progressively, reducing the potential frequency and intensity of bottom-outs. PROGRESSIVE TRAIL GEOMETRY: The geometry of this bike delivers big bike virtues on demand, with a light and agile steering feel on tight sections and extremely efficient climbing behavior. The centralized, spacious cockpit helps center the rider for optimal traction and cornering control. A low bottom bracket, slack head tube angle, and optimized fork offset offer easy balance even in challenging terrain, thanks to ample stability. A FRAME FULL OF OPTIONS: Six individual settings allow riders to perfectly adjust the ergonomics and efficiency of their bike according to preferences and terrain. Head angle and bottom bracket height can be adjusted for 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 greater playfulness? You have the choice. If you want to change the combination, we offer the appropriate linkage plate in our shop. And don’t worry, the geometry and ride characteristics remain consistent. SWAT BOX: The ingenious SWAT™ Box 4.0 in the downtube offers a wind-, weather-, and crash-resistant storage compartment, which is now even safer and better integrated in the Stumpjumper 15.