I recently had my LBS install a set of DA 7800 cranks on my complete DA 7700 drive train bike. I now have severe chain rub (front D) on 10 different gears. When I questioned the mechanic about it, he said that would happen until I upgraded to a 10 speed system. Am I being BS'd here or what?
If this is correct, can I use a DA 10 STI's and cranks with Ultegra front/rear derails, chain, and cassette? Do I need to upgrade the front D, or will the 9 speed work with 10?
Thanks
If this is correct, can I use a DA 10 STI's and cranks with Ultegra front/rear derails, chain, and cassette? Do I need to upgrade the front D, or will the 9 speed work with 10?
Thanks