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Are you using the Brompton chainring or your 60? Wondering what a Brompton chainring and guard looks like on 7800s.
Also, why the mtb hollowtech? 68 spaced innit? And the mtb hollowtech is slightly wider than the road?
TM-
My 58, but I can put the Brompton ring on for a pic if you'd like?
MTB BB as apparently the DS needs to be spaced out 3-4mm. MTB cups are actually 1mm shallower than road cups so you get a bit more wiggle room. Following this.
umop3pisdn
I have these and an MTB HTII BB. Let the magic happen.