NEW Surly Krampus Frameset - 29", Steel, British Racing Green variant-size-s standard track cog available in

standard track cog available in the most popular sizes

The smaller left arm chassis design provides maximum bike compatibility

Not compatible with multiple chainring drive trains

Reinforced steel axle with 30% greater stiffness compared to Trail designated crank options

Cassette Cogs: 13-14-15-16-17-18-19-21-23-26

NEW Surly Krampus Frameset - 29", Steel, British Racing Green variant-size-s standard track cog available inThe Krampus is the bike that started it all the plus size movement that is. The Krampus features Surlys 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