Specialized's Stumpjumper EVO Frame is not your everyday trail bike, and it brings a whole new design to the table so we can get after gnarly rides. The Stumpjumper features 150mm of performance-tuned travel, S-Sizing geometry, and a Rider-First Engineered frame, all in a sweet, lightweight Fact 11mm carbon package. Kinematic performance is optimized to improve pedaling performance, capability, and agility so we can swerve on trails we wouldn't be able to without an aggressive machine like this. Though the bike is intended to roll on 29-inch wheels, you can run it mullet-style with a 27. 5 rear wheel using Specialized's aftermarket MulletLink (sold separately). *Due to unprecedented demand in the global supply chain and the bike industry over the last 18 months, material weight and exact components are subject to change. We are working diligently to keep tech specs updated, and any adjustments will be minor. If you have any questions, reach out to a Gearhead by chatting online or calling 1-888-276-7130.