Page 1 of 2

Knocking noise from front end, NC30

Posted: Thu Apr 15, 2010 8:14 pm
by Drunkn Munky
Been getting a slight knocking noise from the fron end, done the obvious and checked for anything loose or in the way but found nothing, both wheel and head bearings seem to be ok. I can also get it to make the noise by holding the front brake on and bouncing the front end. the knock is always at the bottom of the fork travel so could this be bottoming out? Ive seen rick does an anti bottoming kit but im fitting his upgrade kit soon so will i need this anti bottoming kit aswell?
Only thing is whilst riding the noise is there but the forks are nowhere near bottoming out, any ideas?

Re: Knocking noise from front end, NC30

Posted: Thu Apr 15, 2010 9:11 pm
by hunter
Sounds like fork bushes.

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 8:54 am
by superlite
Loose front guard mounts?

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 9:01 am
by viper_biker
superlite wrote:Loose front guard mounts?
+1

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 9:13 am
by Drunkn Munky
Ive checked these and cant seem to find a fault with them but then ive heard of packing something out with a rubber washer with regards to the mudguard but looking at it i cant see where????

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 9:16 am
by superlite
A couple of layers of electrical tape on the inside does the trick.

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 9:19 am
by Drunkn Munky
On the inside of where matey??

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 10:07 am
by superlite
On the inside of the guard mounts. Remove the clips and slide them up the forks, add tape and then re-fit. Jobs a gooden :up:

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 10:49 am
by Old Painless
My CBR600 was doing something like this, turns out the rubber bushes on the calipers were worn and the caliper was moving. Try wobbling the caliper with your hand.

Re: Knocking noise from front end, NC30

Posted: Fri Apr 16, 2010 11:10 am
by banoffee
mine does this, it's the mudguard mounts. dont notice when wearing earplugs and/or with the race can on so ignored it