Tin Pot
Guru
Just thinking there could have been a flaw in the installation, worth thinking through imo.
Otherwise it's obviously far too soon for a BB to fail. Even cheapo ones can last three years or more.
How long should a bottom bracket last?
- Thread starter iateyoubutler
- Start date
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Just thinking there could have been a flaw in the installation, worth thinking through imo.
Otherwise it's obviously far too soon for a BB to fail. Even cheapo ones can last three years or more.
iateyoubutler
Guest
I have an engineering job where everything has to be perfect, and this rubs off on to my own things, this would have been cleaned, torqued, lubed etc to the letter. I`m sure I just bought a Friday afternoon job!!
iateyoubutler
Guest
It didn`t cost me a great deal, but I`m still disappointed to be changing it again so sooon..........
HLaB
Marie Attoinette Fan
I transferred my Truativ GXP (or whatever it was then) BB from an old frame that cracked in several places to a new frame so I'm guessing it done at least 24,000 miles maybe more but the SRAM version are made out of cheese and despite me now cycling in a less harsh environment (other components last longer) and I've replaced them several times and the similar shimano external cups on my other bike
- Location
- The TerrorVortex
There isn't really a 'process' to fitting a cartridge BB, is there? You just screw it in, preferably with a bit of lube on the threads.
Definitely a bit soon to have gone. Mine usually last for years.
Definitely a bit soon to have gone. Mine usually last for years.
While it sounds unlikely in this case, as the OP seems to have a grip of doing things up properly, The Boy's bike showed symptoms of a worn square taper BB. Investigation showed it was the adjustable cup had come loose. A quick go with a socket set and a BB tool and it was fine for eons.
raleighnut
Legendary Member
- Location
- One of the 'Elite'
Loose bearing/adjustable cup BBs last forever as long as you grease em once in a while and fit new bearings when they need doing. These cartridge jobbies that Shimano get cobbled together on the cheap these days are made of cheese.
(the 105 one in my Carlton has been in since 1987 and the Ridgeback is still on its original shaft although both have had a couple of new bearing sets)
iateyoubutler
Guest
I did actually try that first, I took it all out and re-fitted it but no good, it`s definitely knackered.............I wish that was all it was!!
Hedgemonkey
Now Then
- Location
- NE Derbyshire
FSA one on my Whyte lasted about 1500 miles of hilly winter commuting and the odd offroad adventure. Not impressed. When I removed it, the non drive side bearing had about 1mm of play.
Drago
Legendary Member
- Location
- Suburban Poshshire
My oldest Shimano sealed BB is 21, still slick and smooth, just like me.
iateyoubutler
Guest
That`s appalling
iateyoubutler
Guest
New one fitted today (couldn`t be bothered to moan about the old one at the shop), bike is transformed. Amazes me how something so small, in the scale of things can make cycling miserable. I hate uninvited noises, my bikes have to be silent or I`m out of here!! As a result I have got good at finding odd noises over the years, and I won`t give up until I do.............
Lee_M
Guru
except dirt and water get in between the bearing cassette and the bottom bracket and the cassette doesnt have a good fit so it act like a grinding paste and grind away at the frame. Oh and the water gets into the bearing and they seize up.
and thats why trek brought out oversized bearings to try and stop it happening
uclown2002
Guru
- Location
- Harrogate
Incoming!!