NEW Surly Krampus Frameset - 29", Steel, Nose Drip Curry - 210000051016
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.
Features
- 100% Surly 4130 CroMoly steel frame and fork; double-butted main triangle and 44mm headtube
- New tube-set uses the same trumpet tubes found on 2017 Karate Monkey frame
- Gnot-Boost adjustable rear dropouts
- Internal dropper seatpost routing
- 30.9mm seat tube
- Designed to fit up to 29 x 3.0” tires
What our Experts Think
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A flagship 29+ trail platform, the Surly Krampus Frameset is built for riders who want maximum control, traction, and fun on technical off-road terrain.
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Robust 4130 Chromoly steel frame and fork deliver Surly’s signature durability with a smooth, compliant ride feel that reduces fatigue on rough trails.
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29+ wheel compatibility (29" x wide tires) provides exceptional rollover ability, grip, and stability on roots, rocks, and loose surfaces.
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Trail-focused geometry emphasizes descending confidence and playful handling, making it ideal for aggressive singletrack exploration.
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Highly capable rigid MTB platform, designed to perform without suspension while still maintaining comfort and control through tire volume and frame compliance.
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Bikepacking-ready design, with mounting options for racks and accessories for extended backcountry or expedition builds.
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Wide tire clearance flexibility allows riders to tune the bike for speed, comfort, or maximum traction depending on terrain.
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Nose Drip Curry finish gives the frame a bold, distinctive personality while maintaining Surly’s rugged, utilitarian aesthetic.
Q&A
Q: What is the Surly Krampus Frameset designed for?
A: The Surly Krampus Frameset is a 29+ hardtail frameset built for aggressive trail riding, bikepacking, and off-road adventure.
Q: What makes the Krampus different from a standard mountain bike?
A: It uses 29+ geometry, designed for extra-wide tires that improve traction, stability, and comfort on rough and loose terrain.
Q: What frame material is used?
A: It is made from Surly 4130 Chromoly steel, offering durability, compliance, and long-term off-road toughness.
Q: What terrain is it best for?
A: It excels on singletrack, forest trails, gravel, and technical off-road routes where grip and control are critical.
Q: Is it good for bikepacking?
A: Yes. It includes multiple mounts for racks, bottles, and cargo systems, making it well-suited for loaded adventure setups.
Q: Why choose the Surly Krampus Frameset?
A: Riders choose it for its monster-truck tire clearance, playful handling, and rugged steel construction built for demanding trail and expedition use
Maintenance Tips
- Clean frame and fork after trail, mud, or wet rides to prevent corrosion and preserve finish.
- Inspect chromoly steel frame regularly for paint chips, rust spots, dents, or stress marks; touch up exposed steel promptly.
- Apply internal frame rust inhibitor annually, especially in wet, snowy, or coastal conditions.
- Grease all threaded interfaces (bottom bracket, headset, thru-axles, bottle/rack mounts) to prevent seizing over time.
- Check suspension-corrected fork, dropouts, and disc brake mounts frequently for tightness and alignment after aggressive trail riding.
- Maintain drivetrain (chain, cassette, chainrings) with regular cleaning and lubrication, especially after muddy rides.
- Ensure tire clearance stays clear of packed mud or debris, particularly with high-volume 29+ tires.
- Inspect wheel, hub, and axle components regularly due to trail impacts and wide tire loads.
- Avoid pressure washing to protect bearings, seals, and frame joints from water intrusion.
- Store indoors in a dry place to maximize frame durability and finish longevity.
Damage 
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