The Krampus is the bike that started it all — the plus-size movement. Engineered to provide a unique blend of traction and speed, this frameset features Surly’s Gnot-Boost rear hub spacing of 145mm.
This versatile design is compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle, and 135mm quick-release hubs, ensuring you have the flexibility to build your rig your way. Rolling on a 29+ platform, this bike is designed to roll over just about anything you can point it at.
- 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
- Gnot-Boost adjustable rear dropouts for custom wheelbase and hub configurations
- Internal dropper seatpost routing for modern trail capability
- 30.9mm seat tube diameter
- Massive tire clearance designed to fit up to 29 x 3.0” tires
| Rear Axle | 12mm Thru x 145mm |
| 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
Surly Krampus Frameset - 29" Steel
$1,099.00
In stock
SKU: 04-002555
The Krampus is the bike that started it all — the plus-size movement. Engineered to provide a unique blend of traction and speed, this frameset features Surly’s Gnot-Boost rear hub spacing of 145mm.
This versatile design is compatible with Boost 148 x 12mm thru-axle, 142 x 12mm thru-axle, and 135mm quick-release hubs, ensuring you have the flexibility to build your rig your way. Rolling on a 29+ platform, this bike is designed to roll over just about anything you can point it at.
- 100% Surly Chromoly steel frame and fork; double-butted main triangle and 44mm headtube
- Gnot-Boost adjustable rear dropouts for custom wheelbase and hub configurations
- Internal dropper seatpost routing for modern trail capability
- 30.9mm seat tube diameter
- Massive tire clearance designed to fit up to 29 x 3.0” tires
| Rear Axle | 12mm Thru x 145mm |
| 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
Please Note: Product images are for illustrative purposes only. Manufacturers occasionaly make updates to components, specifications, and finishes, meaning the actual bike you receive may vary slightly from the photos. However, any substituted parts will always be of like or better quality. If you have any questions about specific components, please don't hesitate to reach out to our team so we can get you the most up-to-date info on our current stock.
GEOMETRY
| Frame measurements (mm) | SM | MD | LG | XL |
|---|---|---|---|---|
| A. Effective Top Tube | 585 | 610 | 635 | 660 |
| B. Stand Over | 770 | 797 | 825 | 853 |
| C. Reach | 404 | 426 | 448 | 470 |
| D. Stack | 593 | 602 | 612 | 621 |
| E. Total Seat Tube Length | 368 | 419 | 470 | 521 |
| F. Headtube Length | 90 | 100 | 110 | 120 |
| G. Headtube Angle | 69 | 69 | 69 | 69 |
| H. Seat Tube Angle | 73 | 73 | 73 | 73 |
| I. BB Drop | 65 | 65 | 65 | 65 |
| J. BB Height | - | - | - | - |
| K. Chainstay Length | 435 | 435 | 435 | 435 |
| L. Fork Length Axle to Crown | 483 | 483 | 483 | 483 |
| M. Fork Offset | 47 | 47 | 47 | 47 |
| N. Wheelbase | 1087 | 1113 | 1138 | 1164 |
| Component measurements (mm) | ||||
| Crank Arm Length | 165 | 165 | 170 | 170 |
| Handlebar Width | 750 | 800 | 800 | 800 |
| Stem Length | 70 | 70 | 70 | 80 |