Originally Posted by
Unagidon
Glad to hear that the new Tiagra will work well with 10 speed though.
I have not had a good experience with using Tiagra with 10sp. I transferred my one-year-old Tiagra 9sp compact cranks onto my 10sp Ultegra bike to try out the compact gearing. The shifting was usually fine and smooth but occasionally the chain would drop between the rings. In fact I was going to start a thread here to discuss the pros and cons of grinding a small amount off the ring support lugs to shift the rings slightly closer together.