The Stumpjumper 15 Expert has arrived and is ready to eliminate any compromises in trail riding. Does it handle rough terrain like a big bike? Check. Does it provide the control, playfulness, and efficiency of bikes with less travel? Double check. What about various adjustment options to perfectly tailor the bike to your preferences and riding style? Check, check, check. EVEN MORE CAPABLE: Our new GENIE damping technology combines a playful and bouncy ride feel with the downhill capabilities of enduro bikes. EVEN MORE CONTROL: The Stumpjumper 15 features better traction than our “Bike of the Year,” the Stumpjumper EVO. ENDLESSLY CUSTOMIZABLE: Six different geometry settings, mullet or full 29er, tunable spring curve, and much more. GENIE LEAVES NO WISH UNFULFILLED: Our latest innovation is GENIE. This air dampening technology meets the top three desires of our riders: an almost "impervious" air shock that offers the smooth ride of a steel spring—along with ultra-fine adjustability. THE BEST OF BOTH WORLDS: GENIE combines the linear spring rate of a steel spring in the first 70% of travel with the progressive spring rate of an air spring in the last 30%. This maximizes control and prevents bottoming out. GENIE combines the advantages of both steel and air springs while allowing tuning flexibility. Say goodbye to compromises; the future of trail riding begins now. BETTER IMPACT MANAGEMENT: With 16.3% better impact management than conventional air dampers, GENIE in the Stumpy 15 makes it feel as if the bike has much more travel. For example, the Stumpjumper 15, with 145 mm rear travel, and our Enduro with 170 mm both use 101 mm of travel to absorb an impact force of 1080 N. MORE TRACTION: Extensive lab and trail testing has shown that the Stumpjumper 15 with GENIE delivers 57% better traction than traditional air shocks. Our new GENIE technology provides the smooth performance of a steel spring, ensuring greater rear wheel contact than a standard air damper. Your force is better transmitted, giving you more control. LESS BOTTOMING OUT: The harder the hits, the more the "silent reserve" of GENIE reveals its full potential: In the last 30% of travel, the damping resistance increases progressively, reducing the potential for bottom-outs in frequency and intensity. PROGRESSIVE TRAIL GEOMETRY: The geometry of this bike offers big bike virtues on demand, a lightweight, agile steering feel in tight sections, and exceptionally efficient climbing abilities. The 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 handling in challenging terrain due to excellent stability. A FRAME FULL OF POSSIBILITIES: 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 altered for optimal balance or necessary ground clearance. MULLET OR FULL 29ER: Large wheels for better rollover and more momentum, or a smaller rear wheel for more playful handling? You have the choice. If you wish to change the combination, we offer suitable linkages in our shop. And don't worry, geometry and suspension characteristics remain the same. SWAT BOX: The ingenious SWAT Box 4.0 in the down tube offers a wind-, weather-, and crash-proof storage compartment, now even safer and better integrated in the Stumpjumper 15.