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 Post subject: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 1:31 pm 
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Posts: 1405
My bottom bracket is making a loving grumbling noise (nothing to do with all the mud and wet weather we have been having :lol: honest), thing i need a new one but strugging with sizes/names off every thing. According to commencals website i have got a SRAM S1000 Press-fit 39/26 crank, frame details says its designed for PressFIT BB92
bottom bracket.

Search for a "bb92" and it only comes up with http://www.chainreactioncycles.com/Mode ... elID=51397
Search for "pressfit" and it comes up with £100+ bottom brackets!

Whats what?

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RAF spitfire PEDAL-WORX RACEING


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 1:43 pm 
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Location: Southend
Search for "press fit" not pressfit daft i know but...

http://www.chainreactioncycles.com/SearchResults.aspx?Search=press+fit&CategoryIDs=90

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It doesn't matter what you ride


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 1:53 pm 
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Location: essex
Have you tried removing and refitting it?
mine was making some grumblings so i took the crank out cleaned the axle and popped it back and the grumbling stopped

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www.pinkbike.com/u/nwmlarge/


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 1:55 pm 
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unityjon wrote:

The do like to make it easy don't they

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RAF spitfire PEDAL-WORX RACEING


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 1:58 pm 
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nwmlarge wrote:
have you tried removing and refitting it?
mine was making some grumblings so i took the crank out cleaned the axle and popped it back and the grumbling stopped

Have not yet but it sounds like part of the bearing cage has collaped with a ball or two siding round when i pedal

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RAF spitfire PEDAL-WORX RACEING


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 2:02 pm 
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Posts: 1405
http://www.chainreactioncycles.com/Mode ... elID=42778

This looks like the one i have got (from what i remember when i have removed my crank before). I guess when you have an expressive bike, everything is expensive for it =(

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RAF spitfire PEDAL-WORX RACEING


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 2:10 pm 
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Posts: 2082
Location: Southend
Ceramic on a factory bike, damn... is it not covered by warranty ?? LOL

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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 2:19 pm 
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I would of though they would have said its wear and tear and not a warranty issue, as i said, it's only from what i rememeber. Not doing anything tonight so may wip the crank off tonight and check to see if theres any numbers for refences.

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RAF spitfire PEDAL-WORX RACEING


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 Post subject: Re: Bottom bracket grumbling
PostPosted: Wed Mar 20, 2013 8:10 pm 
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Posts: 1405
Right whipped off both cranks.

Bad news, one bearing seams fine, the other is like a bag of bolts. New one it is then.
Good news, it says its an Truvatic GXP (not super duper £150 joby but £30) on it so would of thought i would need
http://www.chainreactioncycles.com/Mode ... elID=55293
Just my luck out of stock at the moment... lets look around

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