I have a 7 speed Sachs Aris (LY-9X). I can get an 8 speed Sachs Aris (LY-9X).
Can I swap out the threaded 1st (12t) and the threaded 2nd (14t) on the 7 speed with the threaded 1st (13t) and threaded 3rd (15t) from the 8 speed?
Is the 8 speed and 7 speed freewheel body the same?
Thanks for any information.