93 Cannondale 3.0 series MTB and 2005 Trek 1500 road bike
2005 Ultegra 10 Speed, chain advice please
First post here, i'm UK based, periodically do some big rides with lots of big gaps of just eating doughnuts and drinking beer!
So I have a 2005 Trek 1500. It was the first year of the 10 spd Ultegra. I'm a little mystified by which chain I need. It looks like the CN 6600 was the original spec, but there's a 6700 and 6701. Can I use any of these chains? I assume the later ones are just a redesign/better spec?
Sorry if it's a simple question, I've googled it but not really found a definitive answer,