Rollout on 48/18 is 18'8", giving a gear of 71.3. If I were chasing marginal gains, I'd change to 51/19 to get 71.8
And 140mm cranks?
@gbj_tester 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.
Rollout on 48/18 is 18'8", giving a gear of 71.3. If I were chasing marginal gains, I'd change to 51/19 to get 71.8