probably not set up properly and the idler wheel is rubbing on the chain pusher. Just dial in the 2mm limit screws a wee bit, if you look from behind you can easily see whether its clearing - too far and the shifting wont work - if you want the best shifting, you need to stabilise the DR as stock it wobbles around..
how old? where from?
probably not set up properly and the idler wheel is rubbing on the chain pusher. Just dial in the 2mm limit screws a wee bit, if you look from behind you can easily see whether its clearing - too far and the shifting wont work - if you want the best shifting, you need to stabilise the DR as stock it wobbles around..