Originally Posted by
bernmart
I weigh 190. Reading all these posts, I'm aware that I cross-chain probably more than I should; the DA shifters and Ultegra derailleurs work so well that it's possible to ride big/big, for ex., without any rubbing or indication that the system is under stress.
That is your answer...you probably have reduced the chainring and cog life as well. A 20 speed is really not a 20 speed but really about a 15 max for optimal gear use. I think you will find if you set up your own protocol you will be able to extend the life of the drive train parts significantly. Good luck.