Originally Posted by
SoSmellyAir
Why does the drivetrain need to be replaced? Is it rusted or otherwise damaged? If neither, start with just a thorough cleaning and lubrication, then calibrate the derailleurs
I would say tires, brake pads, cables and cable housings are more urgent candidates for replacement.
What is wrong with the gear ratio?
A lot of rust and weight savings was my general concern for the triple cranks. Secondarily, upgrading components where my budget allows.
By ratios I really meant making sure whatever I do upfront translates then into shifting, cassette, and derailleur compatibility.