Bicycle Mechanics - MY BB is loose

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NZLcyclist
04-22-03, 01:37 AM
Hi there,

I have an Apollo road bike with Sora, and the BB is loose

Its a: Cartridge Bottom Bracket - BB-UN40-Double

(as copied from shimano.com) Is it possible to tighten a cartridge BB? or does it need replacing?

Brendon
:beer:

spinner5339
04-22-03, 04:23 AM
NZLcyclist

Read Barnetts Chapter 10.
NZLcyclist
04-23-03, 08:47 PM
replaced with an Ultegra BB..... 25% discount and free installation cause I used to work for them and I bought the bike off them.

Brendon
:beer:

Chi
04-23-03, 08:51 PM
Sweet.
NZLcyclist
04-23-03, 09:05 PM
Doesnt mean im completely happy....im damned p!ssed that I had to replace the thing after 3000km

Brendon
Chi
04-23-03, 09:24 PM
I've heard that given enuf tough riding, BBs tend to break down sooner than you think. I'm sure the Ultegra will bring you better luck.
spinner5339
04-23-03, 09:30 PM
hmmm.. how did you fixed the SORA cranks to Ultegra BB? 105, Ultegra & DA bottom bracket are spline whereas SORA & Tiagra are square. ??
NZLcyclist
04-23-03, 09:35 PM
It was square...... model numba UN 73

Brendon
:beer:
Waldo
04-23-03, 09:58 PM
To anyone else that might need a square taper bb, get 'em while you can. Shimano's already phasing out the good ones, starting with Dura Ace.
D*Alex
04-24-03, 05:33 AM
Then, it was a UN73 BB, not an Ultegra...........
FWIW, Shimano phased out the D/A BB's several years ago.
NZLcyclist
04-24-03, 03:36 PM
ok

cheers
Brendon
:beer: