https://www.gorrick.com/
Don't see why you wouldn't be allowed to race on a CX bike.
28 quid a race! plus 1.5hr drive.
Why race?
Yes, I recall asking myself that about an hour in
@amey started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
https://www.gorrick.com/
Don't see why you wouldn't be allowed to race on a CX bike.