Cat 4 confirmed
no cat 4 in palace
"8.1.2 When competing under these Regulations riders (other than as provided in T.R. 8.1.8 and 8.1.9) shall wear Club or Region registered design and colours, as is appropriate."
https://www.britishcycling.org.uk/zuvvi/media/bc_files/rulebook/2018/C7_-_Technical_Regulations_For_General_Road_Track_and_Roller_Racing.pdf
@amey started
London Fixed Gear and Single-Speed is a community of fixed gear and single-speed cyclists.
Cat 4 confirmed