The Stumpjumper 15 Expert is here and ready to eliminate any compromises in trail riding. Does it handle rough terrain like a big bike? Absolutely. Does it offer the control, playfulness, and efficiency of bikes with shorter travel? Double check. And what about various adjustment options to customize the bike perfectly to your needs and riding style? That's a resounding yes. EVEN MORE CAPABLE: Our new GENIE damper technology combines a playful and responsive ride with the downhill abilities typical of enduro bikes. EVEN MORE CONTROL: The Stumpjumper 15 has better traction properties than our "Bike of the Year," the Stumpjumper EVO. ENDLESSLY ADAPTABLE: Featuring six different geometry settings, Mullet or Full 29er options, adjustable spring rate, and much more. GENIE LEAVES NO WISH UNFULFILLED: Our latest innovation, GENIE, is an air damping technology that fulfills the three main desires of our riders: an almost "bottomless" air shock 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 for the first 70% of travel with the progressive spring rate of an air spring for the last 30%. This maximizes control and prevents bottom-outs. GENIE offers the best of both - steel and air springs - along with tunability. Say goodbye to compromises. The future of trail riding begins now. BETTER IMPACT MANAGEMENT: With 16.3% better impact management than conventional air-sprung dampers, GENIE in the Stumpjumper 15 makes the bike behave as if it has much more travel. For example, both the Stumpjumper 15 with 145 mm rear travel and our Enduro with 170 mm utilize 101 mm of travel to absorb an impact force of 1080 N. MORE TRACTION: Extensive lab and trail tests have shown that the Stumpjumper 15 with GENIE offers 57% better traction than a standard air damper. Our new GENIE technology provides the smooth performance of a steel spring, ensuring more rear wheel contact than a typical air damper. Your power is transmitted better, giving you greater control. LESS BOTTOM-OUT: The harder the impact, the more GENIE's "silent reserve" reveals its potential: in the last 30% of travel, the damping resistance progressively increases, reducing the likelihood and severity of bottom-outs. PROGRESSIVE TRAIL GEOMETRY: The geometry of this bike delivers big bike virtues on demand, a feather-light steering feel in tight sections, and exceptional climbing efficiency. The central, spacious cockpit centers riders for optimal traction and cornering control. The low bottom bracket, slack head tube angle, and optimized fork offset also provide effortless balance in challenging terrain thanks to superior stability. A FRAME FULL OF OPTIONS: Six individual settings allow riders to perfectly adjust the ergonomics and efficiency of their bike according to preference and terrain. Steering angle and bottom bracket height can be modified for the ideal center of gravity or necessary ground clearance. MULLET OR FULL 29ER: Choose larger wheels for better rollover and momentum, or a smaller rear wheel for more playfulness. If you want to change the combination, we offer the appropriate link in our shop. And don't worry, the geometry and suspension characteristics remain the same. SWAT BOX: The ingenious SWAT™ Box 4.0 in the downtube provides the Stumpjumper 15 with a wind-, weather-, and crash-proof storage compartment, now even more secure and better integrated.