I did a search and didn't find what I'm looking for, I have an ultegra ten speed double, had thought about a compact crank but was wondering if I could just get a smaller chainring to replaced the 39 tooth ring? if so should i expect shifting problems by going to a 53 34 setup? wondered if it was possible or if anyone has done it with sucess?
38 is about as low as they make them for a 130 BDC, and I have a site that made a 37 but the bolts were placed high into the teeth. If you want to do something like a 53 / 34 you need to look at a compact crank with a compact front dr to make the shift difference. Go look at the Road thread....they have lots of compact crank advice.