I have an older road bike that I use to commute to work. I broke the crank today. I was thinking about upgrading to a newer triple crankset. Perhaps with the external bearings. Most of the cranksets are for 9 or 10 speeds. My bike has an 8 speed cassette and shifters. I did not want to upgrade my shifters yet. Can I keep my current front derailer work with new triple crankset (even though the crankset says 9/10 speed)?
Are the external bearing better than my older style square taper BB? I could just buy a new left crankarm?