Surly Krampus frame kit - First Loser silver

As the first "Plus" bike to hit the market, the Krampus has changed the way many people approach trail riding. It has shown people how large-volume, large-diameter tires can significantly enhance the riding experience. Additionally, it has debunked the myth that large tires make you slow.

The Krampus is somewhat the opposite of a mullet: long in the front and short in the back. With its long top tube and compact chainstays, it takes trail shredding capabilities to the next level. A mullet might be business in the front, party in the back, but the Krampus makes partying its business.

The frame features Gnot Boost 145 mm dropouts, allowing it to be used with rear wheels in 12 x 142 mm or Boost 12 x 148 mm. Special adapters are required for use with quick-release, which are not included.

 
Features:

• Mounts for front and rear racks
• Mounts for front and rear fenders
• Frame material: 4130 Chromoly, Natch tubing, double butted main triangle, trumpet flared tubes, TIG welded, ED coated
• Fork material: 4130 Chromoly, Natch tubing, double butted tapered fork blades, TIG welded, ED coated
• Head tube: ZS44/28.6 top / EC44/30 bottom, 1 1/8"
• Front spacing: 15 x 110 mm
• Rear spacing: 12 x 142 mm, 12 x 148 mm (Gnot Boost dropouts)
• Brake mount: IS2000
• Seat clamp: Ø 33.1 mm
• Seat post: Ø 30.9 mm
• Front derailleur mount: High Direct Mount Top Pull (Ø 34.9 mm)
• Bottom bracket: BSA 73 mm
• Max tire width: 29 x 3.0" (without fenders)
• Max brake disc size: 203 mm
• Max chainring size: 28 teeth single, 30 teeth single Boost, 36/24 teeth double Boost
• Max suspension travel: 120 mm