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
Both 801 and 501 will fit, 801 will need the plastic TL FC25 tool which will fit any regular HTII BB tool, basically a step down washer.
Surly says Chainring Clearance 24/36/48t so you should be able to clear quite a bit more than 36T.
Nothing beats actually trying one on though.
What's currently on there?
Photo of full biek?