Surly

Krampus Frameset - Hi-Viz Black

Surly Krampus Frameset in Hi-Viz Black is a steel 29+ hardtail platform built around high-volume traction and rollover, aimed at riders who want confident speed on rough singletrack without the complexity of rear suspension.

Where it stands out for 29+ trail builds

1. 29 x 3.0" tire clearance - Designed around true 29+ rubber for added grip, comfort, and momentum over roots, rocks, and loose surfaces
2. Gnot-Boost 145mm rear spacing - Adjustable dropout system supports multiple hub standards for easy wheel sourcing and future-proofing: Boost 148 x 12mm, 142 x 12mm, and 135mm quick-release
3. 100% Surly Chromoly steel frame + fork - Double-butted main triangle delivers durable trail manners and a controlled ride feel that suits long days and loaded riding alike
4. 44mm headtube - Broad headset compatibility for dialing in front-end setup and upgrade paths on a modern trail hardtail frameset
5. Internal dropper routing - Clean, protected cable routing for a dropper post, keeping the build current for aggressive trail riding
6. 30.9mm seat tube - Common post size that opens up wide dropper and seatpost options without oddball shims or limitations