Surly Krampus Frameset - 29", Steel
| Availability: | In stock (2) |
| Delivery time: | FREE Eco-Friendly Standard Ground. Usually ships within the following 2-5 business days. Ships via UPS Ground w/ Signature Required. |
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.
- 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
- Fork Material: Steel
- Wheel Size: 29+
- Brake Type: Disc
- Front Axle: 15mm Thru x 110mm
- Platform: Krampus
- Fork Type: Rigid
- Frame Material: Steel
- Frame Type: Rigid
| Frame Construction |
4130 Chromoly, Natch tubing, double-butted main triangle, trumpet flared tubes, TIG welded, ED coated |
|---|---|
| Fork Construction |
4130 Chromoly, Natch tubing, double-butted tapered fork blades, TIG welded, ED coated |
| Rear Dropout Configuration |
Horizontal slotted with optional vertical dumpout |
| Rear Hub Spacing |
"Gnot-Boost" 145mm |
| Front Hub Spacing |
15 x 110mm (Surly axle included) |
| Rear Brake |
Disc - 51mm I.S. (203mm max rotor) |
| Front Brake |
Disc - 51mm I.S. (203mm max rotor) |
| Head Tube |
Ø44mm |
| Steerer Tube |
Ø28.6mm (1-1/8") |
| Crown Race |
Ø30mm (1-1/8") |
| Stock Headset Upper (S.H.I.S) |
ZS44/28.6 |
| Stock Headset Lower (S.H.I.S) |
EC44/30 |
| Seat Collar |
Ø33.1mm |
| Seatpost |
Ø30.9mm |
| Front Derailleur (Clamp) |
High direct mount top-pull (Ø34.9mm) |
|---|---|
| Max Chainring (CL) [3] |
1x (Mtn): 28T |
| Bottom Bracket |
73mm threaded (1.37" x 24TPI) |
| Tire Clearance Frame [1]/[2] |
29 x 3.0” |
| Tire Clearance - Rigid Fork [1][5] |
29 x 3.0” |
| Rigid Fork Spec |
483 x 47mm |
| Max Suspension Fork Length [4] |
550 x 51mm (29+ 120mm) |
| Bottle Mounts Frame |
1 Standard + 1 Three-Pack |
| Bottle Mounts Fork |
2 Three-Pack |
| Rack Mounts Frame |
Yes (upper and lower threaded) |
| Rack Mounts Fork |
Yes (upper, lower, and mid-blade threaded) |
| Fender Mounts Frame |
Yes |
| Fender Mounts Fork |
N/A |
| Other Features |
Internal dropper post routing compatible |
[1] Different tire and rim combinations will result in different clearances.
[2] Depending on drivetrain configuration, tire clearance may be limited by the chain and not the frame.
[3] Listed chainring clearance is worst-case scenario. Clearances vary widely depending on components and configurations.
[4] Suspension fork length listed at full extension (not at sag)
[5] For suspension fork tire clearance, please reference the fork manufacturer's website.
RIGID FORK GEOMETRY:
| SM | MD | LG | ||
|---|---|---|---|---|
| Reach | 404 | 426 | 448 | 470 |
| Stack | 593 | 602 | 612 | 621 |
| Head Tube Angle | 69.0° | 69.0° | 69.0° | 69.0° |
| Head Tube Length | 90 | 100 | 110 | 120 |
| Seat Tube Length | 368 | 419 | 470 | 521 |
| BB Drop | 65 | 65 | 65 | 65 |
| Wheelbase | 1087 | 1113 | 1138 | 1164 |
| Chainstay Length | 435 | 435 | 435 | 435 |
| Top Tube Length, Actual | 556.8 | 573 | 595.1 | 621.8 |
| Top Tube Length, Effective | 585 | 610 | 635 | 660 |
| Seat Tube Angle | 73.0° | 73.0° | 73.0° | 73.0° |
| Standover Height | 770 | 797 | 825 | 853 |
| Stem Length | 70 | 70 | 70 | 80 |
| Stem Angle | 6° | 6° | 6° | 6° |
| Handlebar Width | 750 | 800 | 800 | 800 |
| Crank Length | 170 | 175 | 175 | 175 |
| Fork Length | 483 | 483 | 483 | 483 |
| Fork Rake | 47 | 47 | 47 | 47 |
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