Specialized

Stumpjumper 15 Alloy Frame

The Specialized Stumpjumper 15 Alloy Frameset obliterates trail compromises, delivering both the rugged durability of a big bike and the nimble playfulness of a short-travel rig. We love the customizability it offers, with six geometry settings that let us tweak everything from head tube angle to bottom bracket height for tackling any terrain with confidence. The breakthrough GENIE shock technology is the star here, offering coil-like traction while maintaining the bottom-out prevention of an air spring. It’s the perfect mix of control, playfulness, and efficiency—all wrapped into one versatile package.

If you're after a trail bike that can be dialed in for any adventure, the Stumpjumper 15 Alloy is a no-brainer. Its tunable GENIE shock technology offers unmatched grip and traction, while the adjustable geometry and wheel options allow you to fully customize your ride for different conditions. This is the frameset for riders who don’t want to compromise on performance or personalization.