I'm thinking of doing a couple of CX races this winter, as well as the traditional MTB Gorrick races. The organisers say it's fine to ride an MTB, but are you at much of a disadvantage? Without spending a fortune, what could you do to a hardtail to make it more appropriate? Rigid forks and skinny knobblies?
Is anyone doing the Herne Hill CX or Rapha series?

