The Krampus is the bike that started it all — the plus-size movement. Engineered to provide a unique blend of traction and speed, this frameset features Surly’s Gnot-Boost rear hub spacing of 145mm.

This versatile design is compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle, and 135mm quick-release hubs, ensuring you have the flexibility to build your rig your way. Rolling on a 29+ platform, this bike is designed to roll over just about anything you can point it at.

• 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
• Gnot-Boost adjustable rear dropouts for custom wheelbase and hub configurations
• Internal dropper seatpost routing for modern trail capability
• 30.9mm seat tube diameter
• Massive tire clearance designed to fit up to 29 x 3.0” tires