WANTED : Shimano BB UN91 - UN90 - UN72 - UN71

RetroRider_IT · Aug 9, 2013

Hello,
I'm looking for the following BB ( NOS or nice condition ) :
- No. 1 : BB UN90 or BB UN91 : 68mm - English threads - 107 or 113mm axle
- No. 1 : BB UN72 or BB UN71 : 68mm - English threads - 122mm axle
BB Pics will be appreciated
Thanks

juice · Aug 12, 2013

Hi,

I was looking for the same bottom brackets like you and ended up buying some BB-UN55.
These ones have the metal cups just like the ones you are looking for. The difference to up to my knowledge is that on one side the bearing and the cup is one unit and can't be changed seperately.
I think i still have some of these laying around doing nothing. Either they are 107 or 113mm. I don't know right now.
If you are interested i will have a look. Let me know.

Cheers,

Adam

Rahbari · Aug 12, 2013

Another difference between BB-UN5X and -UN/9X/7X: around 100g heavier! But at least readily available.

RetroRider_IT · Aug 12, 2013

Thanks mates for your tips ,
yes, BB UN-55 could be an alternative solution to my original request ....

WANTED : Shimano BB UN91 - UN90 - UN72 - UN71

RetroRider_IT

juice

Rahbari

RetroRider_IT

Similar threads

Latest posts