Specialized Stumpjumper 15 Frame

GENIE technology combines the best traits of air and coil springs. It delivers the supple, ground-hugging traction of a coil shock while maintaining the bottom-out resistance and adjustability of an air spring, resulting in a ride that feels both plush and supportive.

Yes, the Stumpjumper 15 frame is designed to be compatible with both full 29er setups and mixed-wheel (mullet) configurations, giving you flexibility to tune the bike's handling to your preference.

The six-way adjustment system allows you to independently modify the head tube angle and bottom bracket height. This lets you fine-tune the bike's stability for steep descents or sharpen its handling for tighter, more technical trails.

It is designed to handle both. While it excels on challenging descents with 145mm of travel, the frame geometry and suspension kinematics are efficient enough for long climbs and all-day adventures, balancing agility with capability.

The GENIE shock is engineered to be significantly more effective, offering 16.3% better bump force management and 57% better traction than a traditional air-sprung shock. You will notice a smoother ride over chatter and significantly more confidence when hitting square-edge bumps.

The alloy construction provides a robust and durable platform that can withstand the rigors of aggressive trail riding. While slightly heavier than carbon alternatives, it offers excellent impact resistance and a solid, planted feel on the trail.