Can new (2020) 7sp or 8sp MTB be upgraded to 10 speed?
there are 2x7 and 2x8 drivetrain mtbs at my LBS under $500 with suspension forks and mechanical disc brakes. Both have 7/8 speed crankset for double chainrings 22/36 with cassette up to 32 teeth. These are perfect for me as a commuter as I need disc brakes for winter conditions since I don't have much confidence with the cantilevers I have now. The 7 speed bikes have bolt on skewers while the 8sp have normal twist type skewers. Can either the 7 or 8sp rear wheel be upgraded to 10sp mtb parts? I have several 10sp sram rear derailleurs lying around as well as cassettes. The 7 and 8 speed crankset should work fine with 10sp cassette as I have tried this before.