GNOT Boost rear hub spacing of 145 mm enables compatibility with multiple thru axle and quick release systems for flexible wheel setups
29 inch wheel with high-volume 3 inch tires provides superior cushioning and stability on rough terrain
100% Surly chromoly steel frame and fork deliver strength and durability for demanding rides
Internal dropper seatpost routing supports modern trail performance and aerodynamic positioning
Adjustable rear dropouts allow fine-tuned handling for various riding styles
Summarized by Shop
Description | Breaking the Mold with a 29+ Bike.
The Surly Krampus Rigid is a steel hardtail built to crush trails, haul gear, and roll over anything in its path. As the bike that pioneered the 29+ platform, the Krampus remains the go-to choice for riders who want monster-truck rollover with classic trail bike geometry.
This rigid version
Frame Material
100% Surly chromoly steel
Wheel Size
29 inch
Rear Hub Spacing
145 mm (compatible with 148 x 12 mm, 142 x 12 mm, and 135 mm thru axle/quick release)