I recently bought a new transmission with an 9-speed Ultegra cassette and Ultegra hyperglide chain. I stupidly cut it too short (the air was blue) and had to break it in a different place and add some more links with the result it has three replacement pins in it.
Not the best situation but I figured I'd just have to replace it when I break it to give the whole thing an overhaul in a year's time or so, but...
When I push hard from lights, up hills etc I heard sporadic loud clicks and felt a slight jump in tension which I narrowed down to the replacement pins going over the chain ring (even the first one which should be no different than if I got it right in the first place). I took a look and thought maybe I pushed the pins too far so pushed them back a little with my chain tool.
This got rid of the clicking but now there's a roughness in it, again pins going over the chainrings. I've checked that none of the links are stiff. I'm guessing my chain is now screwed and I'm going to have to plump for a new one, but any thoughts to the contrary or any advice for when I put another on?
I've broken chains a few times before (intentionally with a chain tool for overhaul) and never had these problems, but inevitably it's not something you do often (unless a mechanic) and nuances of what you did get forgotten.
Last edited by Niall; 09-20-05 at 02:27 PM.
Reason: Remove possible misinterpretation