11-01-2008, 05:13 PM
Hi all,
I am building a road bike with Ultegra parts. I have a 9 speed rear derailleur that I've set and am trying to adjust. I've got the chain on fine, I've adjusted the the H and L limit screws and they are giving me no problems. It shifts through all the sprockets just fine.
However, the guide pulley is rubbing on the largest sprocket pretty badly. I've tried to tighten the B adjustment screw, which helped a lot, until I tightened it as far as it would go. The guide pulley is still rubbing the sprocket.
I noticed that when I pull down on the chain a bit, the guide pulley comes off the sprocket and the problem goes away. Could it be that my chain is a link too long? I wanted to ask before I removed a link and possibly made the chain too short (I know this could do damage to my components).
Any help would be greatly appreciated!!
I am building a road bike with Ultegra parts. I have a 9 speed rear derailleur that I've set and am trying to adjust. I've got the chain on fine, I've adjusted the the H and L limit screws and they are giving me no problems. It shifts through all the sprockets just fine.
However, the guide pulley is rubbing on the largest sprocket pretty badly. I've tried to tighten the B adjustment screw, which helped a lot, until I tightened it as far as it would go. The guide pulley is still rubbing the sprocket.
I noticed that when I pull down on the chain a bit, the guide pulley comes off the sprocket and the problem goes away. Could it be that my chain is a link too long? I wanted to ask before I removed a link and possibly made the chain too short (I know this could do damage to my components).
Any help would be greatly appreciated!!