Surly Krampus
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Surly Krampus

Product Code BKAMKR3882
Other products by Surly
Five years ago, we launched the Krampus because we wanted something that was more than a mountain bike but less than a fatbike. We dubbed it a “plus bike” and set it loose on the world. It turns out, people were in to it. Fast-forward a few years and you can barely swing a dead cat without hitting a plus bike. While we’re mildly tickled that the whole plus thing caught on, what we really want to know is what the hell you’re doing swinging a dead cat around on the trail. Seriously, what’s wrong with you?

Anyway, the original Krampus brought a lot to the table in regards to terrain-tackling and trail-ripping abilities. As “standards” have evolved, so too has the Krampus. Now featuring our Gnot-Boost rear spacing, the Krampus can take whatever mountain bike hub you feel compelled to ride. 10 x 135mm QR, 12 x 142, or 12 x 148 Boost™ will all work. Gneat, huh? The Krampus geometry also got some small tweaks. We shortened some things, made some stuff longer, and slackened other parts ever so slightly. We even made it compatible with dropper posts complete with some stealthy cable routing. All these changes mean the trail now cowers before you.

The Krampus frame is constructed using the same custom-designed, frame-specific, Surly CroMoly “’Natch” steel tubes found on many of our other trail bikes. The main triangle’s tubes are internally butted with some tubes externally tapered, flared like a trumpet and ovalized to add stiffness and strength without adding weight. When you add in the 3” tires, it makes for a resilient and lively ride that’s durable and fun as hell.

If you’re looking to ride through/over/off of obstacles, may the Krampus be your mighty steed. As Thor puts it: “Lean back, hang on, and ride that wild horse.”

Enough options for you? Probably not, but we’re not machines. Now go get on and get off.

Frame Surly 4130 Cro-Moly Steel. Custom double butted externally flared tubing. Horizontal slotted with derailleur hanger, Surly “Gnot Boost” 142 or 148mm hub spacing compatibility
Fork 483mm axle-to-crown x 47mm offset, 110mm hub spacing, tapered and butted straight blade, 4130 CroMoly. 51mm I.S. disc mount
Seatpost clamp Surly stainless, 33.1mm
Crankset SRAM NX 30t
Bottom Bracket SRAM Powerspline
Front Derailleur N/A
Rear Derailleur SRAM Nx
Cog or Cassette Sunrace 11/42
Chain KMC X11-1
Headset Cane Creek
Brakes SRAM Level
Brake Levers SRAM Level
Shifters SRAM Nx
Stem H.L. 4-bolt, 31.8mm
Handlebar Answer Pro Taper
Saddle WTB Volt Sport
Seatpost H.L. 30.9mm
Front Hub Salsa 110mm, 15mm thru-axle, 32h
Rear Hub Salsa 148mm, 12mm thru-axle, 32h
Rims Alex MD40
Tyres Surly Dirt Wizard 29 x 3, 60 tpi

*Specifications subject to change

  S M L XL  
Seat Tube Length
14.7 16.7 18.7 20.7
Top Tube Length
21.9 22.6 23.4 24.5  
Effective Top Tube Length
23.0 24.0 25.0 26.0  
Head Tube Angle 69 69 69 69  
Seat Tube Angle 73 73 73 73  
BB Drop 2.6 2.6 2.6 2.6  
Chainstay Length 17.1 17.1 17.1 17.1  
Wheelbase 42.8 43.8 44.8 45.8  
Standover Height 30.3 31.4 32.5 33.6  
Head Tube Length 3.5 3.9 4.3 4.7  
Fork Length 19.0 19.0 19.0 19.0  
Fork Offset 1.9 1.9 1.9 1.9  
Stack 23.3 23.7 24.1 24.4  
Reach 15.9 16.8 17.6 18.5  


    NOTE: Price applies to Online sales only, pricing may differ in our Retail store.
  • Availability: In our warehouse or with the distributor. Expect delivery in 2-3 days.
  • This item comes with free shipping.

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