Thorn Cycles Forum

Community => Thorn General => Topic started by: balboa on September 01, 2007, 06:20:09 PM

Title: new thorn raven...clunking
Post by: balboa on September 01, 2007, 06:20:09 PM
I took my new Thorn Raven out for a proper ride today for the first time and I've noticed that there is a noticeable clunk/movement within the gears which feels like a dodgy bottom bracket.

Does anyone else have this issue? it's quite annoying, it happens on every turn of the pedals and it's a bit of a jump. hardly a smooth ride!
Title: Re: new thorn raven...clunking
Post by: sloe on September 02, 2007, 12:43:36 AM
Sounds familiar.

Feel under the BB for the two big silver nuts. Check that they're tight.

Hope this helps.
Title: Re: new thorn raven...clunking
Post by: Fred A-M on September 02, 2007, 10:53:53 AM
It certainly does sound as if either the eccentric bottom bracket bolts are loose or that the ebb itself is loose through not being aligned centrally.