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Post by Deleted on Jul 19, 2013 10:01:43 GMT
So got my red Triban last week, I'm pretty sure its the bottom bracket creaking/ clicking when any pressure is put on the drivetrain.
Anyone had theirs replaced, maybe with a better one, from Decathlon?
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Post by captslog on Jul 19, 2013 10:11:05 GMT
Does this happen regardless of which side that load is applied?
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Post by chas on Jul 19, 2013 10:21:40 GMT
Probably just wants tightening up, if you've not got the tool take it back (or take it back anyway if it's not far) Also check cranks & pedals
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Post by Deleted on Jul 19, 2013 10:30:21 GMT
Does this happen regardless of which side that load is applied? Yes happens on the down stroke on each side.
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Post by Deleted on Jul 19, 2013 10:38:33 GMT
Check Seatpost clamp around saddle is done up nice and tight, a few times on other bikes I've thought the BB sounded like it was creaking but it was the saddle moving.
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Post by captslog on Jul 19, 2013 10:42:11 GMT
It happened on my lad's old bike. The crank arm was loose on the square taper and it made a 'clunk' noise when he applied pressure. Normally this only affects one side, as it's unlikely to be both at the same time unless you're unlucky, but it could be one side moving one way under load then back again to give 'two noises' per rev.
As chas says, try tightening the crank arms at the big allen bolt where they go into the BB. If you ignore it, it will wear away the inside of the crank arms where they meet the square tapers.
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Post by Deleted on Jul 19, 2013 11:24:02 GMT
Well I just tightened the crank arms by about 4nm to the max torque (42). It still happens. It's not the seat post etc, everything is tight. I don't have the tools for the bottom bracket so I guess I'll take it back. 30 min drive
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Post by psyclepath on Jul 19, 2013 11:53:22 GMT
Yeah take it back then, it seems odd though. And if you're sure it isn't the pedal bearings or saddle rails? While they're doing it see if you can persuade them to put a decent stiffer bracket in instead of the flexible stock one, you know, for your troubles!
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