I have a 20 year old Suntour drive train and it's a 170mm. It works fine but after riding my other bike with 175mm I know that I prefer that length.
Any ideas on what to replace it with that isn't so new it won't work?
It has a Suntour BB but I don't know what kind of taper it has.
Also the existing crank has 42/53 rings so I am guessing a replacement would have 39/52 rings. Will I need a new FD to handle that?
Hmmm, and how would 39/52 work with my existing 7 speed freewheel as far as ratios? Maybe I could find a 175mm crank and put my existing rings on it...