Originally Posted by skydive69
Are you saying that the Park Chain Checker is more accurate than using a ruler? I ask, only because my chain had over 4000 miles on it, and according to the chain checker, it was over .75, but not quite to 1.0, indicative (at least to me I thought) that the chain was nearing replacement time. I took it to the LBS (good friends - they wouldn't sell me anything that I didn't need), and the head wrench took out his ruler, measured the chain, and announced that I had lots of wear left on it. It made me wonder why I bought the Park tool at the time.
Better to replace when Park Chain Checker hits .75, don't wait for 1.0 or you may be buying a new cassette. I just replaced my chain for the first time on my Roubaix Pro. I was very surprised that the Dura Ace 10spd chain only gave me 1600 miles. On the old 9spd chains I could get close to 5,000 miles. Anyone know of any DA 10spd compatible chains that will last longer. The guys at the LBS said the Dura Ace ones should last approx 1500 miles, so at least I got that out of it. I take good care of my drive chain and don't cross gears or do any other things that would cause pre-mature chain wear.