I’ve been refurbishing this vintage Morrison for a friend as a learning opportunity. Any idea how to identify what bottom bracket I need? I am very smart and pulled everything off the bike for sanding and spraying, but now can’t find the BB 😂
by Egg_shaped
1 Comment
Problably its BSA threaded with a square axle. You’d only need to figure out the length of the axle to line up the drivetrain correctly,
To calculate that you need to know the offset of the drivetrain crank. If I had to guess I would say 122mm.