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I think my swb bike is on the og bottom bracket and different cranks. I used Dura Ace 7402s so maybe I just got lucky with chainline.
Just had a look, definitely the stock bb.
M_V-
based on this i'd have to switch BB's as the non-spider cranks are from 2012?
https://brilliantbikes.co.uk/content/25-brompton-bottom-brackets
r_mash
a question about chainrings. mine is a bit too spinny but I've got one of the ones where the crank is basically part of the chainring.
do I need to change the BB to swap to one of the spider ones ?
edit: the answer is yes duhh