You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
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.
@gbj_tester
Looks like a tuned SRAM Red, and why would you want one? I'm pretty sure that lower pulley bearing is wrong, bearing power loss would be lower with a smaller diameter bearing.