Giant ocr 1 chain line...!!!!

blakeya

Ok, following the discovery of having the incorrect bottom bracket fitted to my bike:-

viewtopic.php?f=40004&t=12854536

I have now ordered up the correct veloce 68x111 item. Now, when i fit this bb, where ideally should my chainline be, running a 2x9 setup??

Help, once again kindly appreciated
Regards
Andy

Monty Dog

Standard road double is 46mm from the centre-line of the outside chainring to the centreline of the seat tube or likewise, 41mm for the inside chainring. If yours isn't that with a correctly matched chainset and BB could suggest there's a problem with frame alignment.