Specialized Stumpjumper 15 EVO Expert AXS

Breakthrough Capability

Genie Shock Technology combines a poppy, playful ride with a bottomless DH feel.

Ultimate Control

Measurably better traction than “Bike of the Year” Stumpjumper EVO.

Unmatched Personalization

Six-way geometry adjustment, mixed wheel or 29”; tunable spring curve, and more.

Genie—The Magic Carpet Ride: The biggest innovation on the Stumpjumper 15 is Genie. This patent-pending air spring technology that we invented grants every trail rider’s three wishes: the feel and control of a coil spring, better bottom-out prevention than a standard air spring, and a tunable “platform” for a playful feel.

Illuminating Genie: Genie combines the control-enhancing linear spring rate of a coil spring through the “bump zone” with the progressive spring rate of an air spring at the end of the stroke to avoid bottom-outs. Truly, it's the best of both worlds – coil and air – with extra tunability. Say goodbye to compromises and hello to the future of riding.

WHAT BUMP?: With 16.3% better bump force management than a traditional air-sprung shock, Genie makes the Stumpy 15 ride like a bike with more travel. For example, the Stumpjumper 15 (with 145 mm rear wheel travel) and our Enduro (170 mm travel) both use 101 mm of travel to absorb a 1080 N bump force.

Traction Galore: Extensive field testing proves that Stumpjumper 15 with Genie delivers 57% better traction than a standard air-sprung shock because Genie technology gives you supple, coil-like performance, which keeps the wheel in contact with the ground a greater percent of the time than a typical air spring would.

BYE; BYE, Bottom-OUTS: 39% fewer bottom-outs than a standard air spring. During big hit…