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Bb Cups


1337 Trials
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Hello. I noticed one of my Bottom bracket cups has cracked so im looking for some new cups. Im not big hardcore mountain biker anymore and I just use the bike to get around on really. Would some shimano cups for £15 do the trick or should I pay a little extra and go for £20-£30 cups?

EDIT: I need the external cups

http://www.chainreactioncycles.com/SearchResults.aspx?Search=bb+cups

Edited by 1337 Trials
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The deore ones are alright.Mine lasted for a few years, my dads lasted a few weeks. Guess its luck of the draw.

The SLX/XT bb's are also good. Mine lasted about a year, with a good few thousand miles on it.

Or for the same price (£24) Go on ebay and grab a Shimano XTR one. Ive just strapped mine on today, and is smooth as silk.

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Agreed, Shimano BB's are bomb proof!

I have run external Shimano BB's (XT and Saint) on my XC and DH bikes for years, I seem to get a good couple of years out of them depending on conditions etc...

I'm not sure if there is actually any difference between the bearing quality of Deore compared to XT or whether it is just lighter cups on the XT offering.

From what you have said I would just go with the Deore BB (Y)

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So I may as well just buy a whole new BB rather than just the cups? Surpose I may as well get it all done now as ive had that BB for a long time and its a pain un-doing bolts to do with the drivetrain.

http://www.ebay.co.uk/itm/Shimano-Saint-HollowTech-II-BB-bottom-bracket-68-73mm-BB80-fits-XT-XTR-SLX-/270944601761?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item3f158e86a1#ht_500wt_1416

Edited by 1337 Trials
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The Deore, XT/SLX and Saint you have just linked to, will all come as complete BB's. You will get the cups with bearings pre-fitted, the plastic tube that sits between the cups and the BB spacers to go between the cups and the frame. It is awkward to replace just the bearings so you replace the cups and bearings in one go.

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A quick google seems to agree with what has already been said.

Truvativ and Shimano use different sizes but you can get adaptors so Truvativ cranks can be used with the Shimano Hollowtech BB's.

I'm not sure what the newer Truvative BB's are like but I owned a few quite a long time ago and they died very quickly whereas the Shimano BB's I have owned since have all lasted ages...

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Ile have a look at shimano BB's then. If I can get the BB and the adapters for £30 ile be chuffed! :)

PS. I just read you can get Truvativ -> Hope adaptors and there is no way im paying over £60 for a BB as I only really ride the bike lightly now.

Edited by 1337 Trials
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