Just a quick question, just wondering how many km's other riders have gone before having to replace their Dura Ace drive train on a road bike?
I'm up to 12,000km and still going good. My first bike, I had to replace the 105's after 7 - 8000km's
I stopped counting after 30,000km (not including rear cassettes and chains of course).
It depends on wether you ride rain hail or shine. (like a real cyclist.) ;)
I've changed my bike before I've changed my drive train.