Is a 90s Trek compatible with a new drivetrain from today?
I have a old 1995 trek Mountain track 850 that has a completely worn out drivetrain beyond repair. I want to upgrade the whole drivetrain to a 36t SHIMANO ALTUS M2000 2x9 speed groupset.
Link-
https://www.aliexpress.com/item/1005...74637964%21rec
Will this work? Is there a better way?