Originally Posted by
gyozadude
Burton:
Nice points on the trim for the SL-R44x shifters. Forgot that with short chain stays and more narrow FD cages, chain rub at the extreme will require trim. Just like even the low-end brifters that have trim. I never had an issue with mtb, since usually, the FD cage is slightly wider and funnelled slightly and shaped to shift over the wider ranges well, whether 42T max or 48T max.
Thanks - can't really take credit for that though. I felt a little sheepish when it was politely explained that it was all covered in the tech docs for each flat bar shifter too. I had never thought to look.
But there HAS been a lot of controversy around these so at least the info might help a few people make informed decisions. For example - anyone that wants to run a smaller main chainring than 48T for touring or radonneuring could go straight to a mtb FD and mtb RapidFire shifters with no issues.