Surly Krampus

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Breaking the Mold with a 29er Bike

As the first “plus” bike to hit the market, Krampus changed the way many people approach trail riding. It’s shown people the light of how high volume, large diameter tires can vastly improve the ride experience. It’s also done a bang-up job dispelling the myth that big tires make you slow.

Krampus is kind of like the opposite of a mullet: long in the front and short in the rear. With a long toptube and compact chainstays, it takes trail-shredding abilities to the next level. A mullet may be business in the front, party in the back but Krampus makes partying its business.

"Lean back, hang on, and ride that wild horse." -Thor

  • Modern trail standards: dropper post compatibility, 44mm headtube, Gnot-Boost rear spacing, thru-axles, suspension corrected fork
  • Compatibility with most mountain bike standards makes it the perfect parts bin bike (no rim brakes allowed though)
  • Clearance for 29" x 3" tires


Frame Surly 4130 Chromoly Steel
Fork Surly 4130 Chromoly Steel
Seatpost Clamp Surly stainless, 33.1mm


Headset Cane Creek
Brakes SRAM Level
Brake Levers SRAM Level
Rotors SRAM Centerline 180/160
Shifters SRAM NX
Grips Velo Single lock-on
Stem ProMax 4-bolt, 31.8mm
Handlebar Salsa Rustler 31.8mm
Saddle WTB Volt Sport
Seatpost 2-bolt, 30.9 x 410mm


Crankset SRAM NX 30t
Bottom Bracket SRAM Power Spline
Front Derailleur None
Rear Derailleur SRAM NX
Cog or cogset Sunrace 11 speed 11-42t
Chain KMC X11EL-1


Front Hub Novatec, 32h, Thru-Axle
Rear Hub Novatec, 32h, Thru-Axle
Rims WTB ST i40 TCS
Tires Surly Dirt Wizard 29 x 3”, 60 tpi Tubeless Ready