Specialized Stumpjumper 15

The Stumpjumper is the bike that started mountain biking — Specialized released it in 1981 as the world's first mass-produced mountain bike, and an original is now in the Smithsonian. Forty-three years later, in July 2024, Specialized launched the Stumpjumper 15 — the 15th generation and a major consolidation: the previous split between Stumpjumper (130mm) and Stumpjumper EVO (150mm) was merged into a single 145mm-rear / 150mm-fork platform with adjustable geometry (65.5° to 63° head angle) and the all-new GENIE rear shock co-developed with Fox. The GENIE is the headline: a dual-chamber air shock that behaves like a coil in the bump zone and ramps up like an air shock at the end of stroke — losing 57% less traction than a standard air shock per Specialized's data.