A worrying rattle

[Gubbins]

A few weeks ago I noticed a rattle when going over cobbles which was a sort of plasticky, mudguardy, pannier sort of rattle and as I have plastic mudguard and panniers I disregarded it..
Mistake..
Now with guards and panniers off it is still there and worryingly loud.. but when I lock the rear suspension it all but stops!
I have checked all the pivot bolts which are tight and there us no lateral movement or play anywhere...
Any ideas?

 

[soundwave]

what is the psi in the shock ? and is it loosing air as could be the seals have gone.

 

[Gubbins]

what is the psi in the shock ? and is it loosing air as could be the seals have gone.

Shock seems ok and eudoension works same as slways.. The noise is lower down so going to take the covers off and look inside there

 

[soundwave]

check the shock bolts as well

 

[Gubbins]

check the shock bolts as well

All tight. No play.

 

[soundwave]

well not much left other than the motor bolts.

 

[Gubbins]

well not much left other than the motor bolts.

I can hold the shock when riding and it makes no difference.. think I need a new bike..

 

[soundwave]

take the motor case of and check the bolts that hold it to the frame then ride it with out the covers on then take it from there.

 

[Gubbins]

take the motor case of and check the bolts that hold it to the frame then ride it with out the covers on then take it from there.

Wots the pic for? Don't want another of these..

 

[soundwave]

lol you can buy me one for Christmas and ill give you my bike

 

[soundwave]

tho it could be the pivot bearings if you cant find anything else that is loose making noise like that as it would explane why its not there with the shock locked.

 

[Gubbins]

tho it could be the pivot bearings if you cant find anything else that is loose making noise like that as it would explane why its not there with the shock locked.

That's what I thought but there is no play in any of them. It's not like the normal loose bolt clicks. it sounds just like a plastic mudguard when it flexes and vibrates on the bumps.
Although you won't know what mudguards rattle like... LoL

 

[soundwave]

i have a mud guard but not as you know it tho even tho there is no play in the bearings crud inside them will make noise had to change my head set because it was making noises.

 

[Gubbins]

Took covers off and all tight inside so decided to give it a clean. Wheels off, chain, cassette and changer all in bits and now all looking newish... which seems to have fixed it!
Don't understand.. been down a cobbled road and it's as quiet as it's ever been.

 

[soundwave]

why do you think i keep my bike so clean cos its cheaper than leaving it and replacing parts and making noises you cant find

 

[Gubbins]

I like this bike.. till another niggle pops up.