Help with bb confusion !!!

You are reading a single comment by @raggi and its replies. Click here to read the full conversation.

•

Scilly.Suffolk

Hatta R9400 is NJS approved, so it'll be 109mm: any NJS approved cranks will work with it.

Sugino RD2 is available in either track or road versions, which take 103mm or 110mm BB respectively. As you have the chainring mounted on the inside you obviously have the road version, which is why it's fouling the BB shell.

It's usually a better idea to choose your cranks first, then buy a BB to suit.

•

raggi in reply to @Scilly.Suffolk

Thanks MSNBC that's really helpful !
So if I had the rd2 track
(rather than tbd road ones)
Do you reckon it would work ?

•

Scilly.Suffolk in reply to @raggi

Sorry, but I don't know what "MSNBC" and "tbd" (to be decided?) mean.

But no, track RD2 won't work with the Hatta BB.

Hatta BB is 109mm and track RD2 need 103mm (see |³|MA3K post above): your chainline would be 3mm out (109mm-103mm/2 = 3mm).

About

Avatar for raggi @raggi started