Truvative Stylo BB question

rut rogue · June 2007

Did a quick fettle of the On-One 456 after reading this months WMTB report on the Truvative Stylo - whaddya know notchy BB bearings. Just flippin' great, 100 years of Isle of Man TT road racing to celebrate and my beast gets sick...!
Now probably being under qualified to put air in the tyres, I need simple help - can I replace the complete BB with something more robust that will still take the seemingly fine Stylo crankset ? Or is a like-for-like swap my only option ?

Cheers

Unknown · June 2007

well it depends on what the crank bb interface is.

it should be ISIS but if after 2005 it could be a giga X pipe. i would take it to your LBS and get them to fix it.

nick
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rut rogue · June 2007

Thanks for the advice, but I'd like to have a go myself - providing I'm not likely to damage me or the bike !
The interface is advised as GXP external bearing, 68mm shell. I don't have a problem with changing the thing out, more concerned about the fit of 'other & longer lasting'' manufactuers goodies onto the crank port facings and then the crank itself into the replacement.
No worries if all fails, our LBS is a sound bet.

Rut

Unknown · June 2007

ok so it is the GXP then it is important that the bb shell has been faced so the sides are parralel and they are perpendicular to the axel axis. as this promotes longer bearing life. and i would replace like with like as they normally last for a fair time.

nick
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buddha · June 2007

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by nicklouse

ok so it is the GXP then it is important that the bb shell has been faced so the sides are parralel and they are perpendicular to the axel axis. as this promotes longer bearing life.
<hr height="1" noshade id="quote"></blockquote id="quote">
I'm hoping that's why the non-drive-side bearing on my Pomp is knackered, whereas the drive-side looks and feels almost as new.

BTW: What tool do you use Nick?
I used the shimano HTII tool and it's made a bit of a mess of the cups.
Mind, I had to resort to the 'pouring a kettle of boiling water over the BB' trick to get them to budge.

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rut rogue · June 2007

Thanks again Nick.
I'm betting Brant at On-One did a proper facing job, but I'm loathed to replace like with like because the original kit hasn't lasted at all well - some 4 months infrequent use and both sides seem as bad as each other.
I'd like to replace the lot with an XT BB, but am concerned that the stylo crank won't fit.
Looking like it's the LBS for me then.

Cheers again for the advice.

Unknown · June 2007

never asume anything. there are companies out there that do bearing/cup upgrades eg: http://www.enduroforkseals.com/id180.html

nick
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Timmywmb · June 2007

I have the exact same Promblem! I was just going to buy a new GXP BB from CRC, would i be right in presuming i could judt buy the bearing from that link & getting LBS to fit em?

Cheers Tim

Unknown · June 2007

well the cups and bearings as it is unlikly that the LBS will have the tools to change the actuall bearings.

nick
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Truvative Stylo BB question

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