using 26.3 for 700cx23 then...
52/19= 71.98 52/18 = 75.98
@bracestower 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.
using 26.3 for 700cx23 then...
52/19= 71.98
52/18 = 75.98