The Krampus is the bike that started it all — the plus-size movement that is. Designed to dominate technical trails and backcountry adventures alike, the Krampus offers a unique riding experience that combines the momentum of 29-inch wheels with the traction and float of high-volume tires. This frameset features Surly’s innovative Gnot-Boost rear hub spacing, providing incredible versatility for riders looking to customize their build.
Built from high-quality materials and engineered for durability, this frame can roll over just about anything you can point it at. Whether you are building a dedicated bikepacking rig or a playful trail shredder, the Krampus provides a stable yet responsive platform for your next custom build.
- 100% Surly Chromoly 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
| Rear Axle | 12mm Thru x 145mm (Compatible with 148, 142, and 135mm hubs) |
| Brake Type | Disc |
| Fork Type | Rigid |
| Fork Material | Steel |
| Frame Material | Steel |
| Frame Type | Rigid |
| Front Axle | 15mm Thru x 110mm |
| Platform | Krampus |
| Wheel Size | 29+ |
Surly
Krampus Frameset - 29" Steel Salmon Skin Silver
SKU: 04-002555
The Krampus is the bike that started it all — the plus-size movement that is. Designed to dominate technical trails and backcountry adventures alike, the Krampus offers a unique riding experience that combines the momentum of 29-inch wheels with the traction and float of high-volume tires. This frameset features Surly’s innovative Gnot-Boost rear hub spacing, providing incredible versatility for riders looking to customize their build.
Built from high-quality materials and engineered for durability, this frame can roll over just about anything you can point it at. Whether you are building a dedicated bikepacking rig or a playful trail shredder, the Krampus provides a stable yet responsive platform for your next custom build.
- 100% Surly Chromoly 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
| Rear Axle | 12mm Thru x 145mm (Compatible with 148, 142, and 135mm hubs) |
| Brake Type | Disc |
| Fork Type | Rigid |
| Fork Material | Steel |
| Frame Material | Steel |
| Frame Type | Rigid |
| Front Axle | 15mm Thru x 110mm |
| Platform | Krampus |
| Wheel Size | 29+ |
SPECIFICATIONS
GEOMETRY
| Size | Small | Medium | Large | X-Large |
|---|---|---|---|---|
| A. Effective Top Tube | 23.03 | 24.02 | 25 | 25.98 |
| B. Stand Over | 30.31 | 31.38 | 32.48 | 33.58 |
| C. Reach | 15.91 | 16.77 | 17.64 | 18.5 |
| D. Stack | 23.35 | 23.7 | 24.09 | 24.45 |
| E. Total Seat Tube Length | 14.49 | 16.5 | 18.5 | 20.51 |
| F. Headtube Length | 3.54 | 3.94 | 4.33 | 4.72 |
| G. Headtube Angle |
69.0
|
69.0
|
69.0
|
69.0
|
| H. Seat Tube Angle |
73.0
|
73.0
|
73.0
|
73.0
|
| I. BB Drop | 2.56 | 2.56 | 2.56 | 2.56 |
| K. Chainstay Length | 17.13 | 17.13 | 17.13 | 17.13 |
| L. Fork Length Axle to Crown | 19.02 | 19.02 | 19.02 | 19.02 |
| M. Fork Offset | 1.85 | 1.85 | 1.85 | 1.85 |
| N. Wheelbase | 42.8 | 43.82 | 44.8 | 45.83 |
| Crank Arm Length | ||||
| Handlebar Width | ||||
| Recommended Rider Height | 63.78 - 68.11 | 66.93 - 72.05 | 70.87 - 74.8 | 74.02 - 77.95 |
| Stem Length |