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
Out of 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
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 |