Challenge 650B Hardtail MTB Frame
using 27.5" wheels the challenge 650B has the rolling advantages of a 29er with the lightness ad handling ability of a 26" MTB .
Made with high module carbon fibre 650B geometry.
Size: 17" or 19"
Headtube: 1 1/8
B.B: PF30 73mm
Seat Post : 27.2mm