You are reading a single comment by @Acliff 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.
@Acliff
Got the spanner, and finally got the BB tightened.
Removed the preload collar and spacer on the Force cranks.
The width of the BSA30 bottom bracket is 91mm.
From looking at a variety of diagrams it looks like I need to add spacers to bring it up to 93-94mm + Wave Washer ±2 0.5 mm shims. Naturally I don't have any spare shims anywhere.
Does that sound right? There are no clear instructions anywhere, as rotor only provide instructions for their Rotor cranksets, so I have looked at Sram's guide for BBRight installation (79mm BB width + 13mm spacer drive side and 2mm + wave washer) and worked backwards.
For BB386, with its 86.5mm width, requires 3.2mm + 2.5mm washer for a total of 92.2mm ± 2 0.5mm shims + wavy washer.