The Krampus is the bike that started it all — the plus-size movement that is. The Krampus features Surly’s Gnot-Boost rear hub spacing of 145mm; compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle and 135mm quick-release hubs.

- 100% Surly 4130 CroMoly steel frame and fork; double-butted main triangle and 44mm headtube
- Gnot-Boost adjustable rear dropouts
- Internal dropper seatpost routing
- 30.9mm seat tube
- Designed to fit up to 29 x 3.0” tires