bob_m
Active member
My silver 1984 R100 turns 4000 rpm at 70 mph and 4500 at 80. The black R100RS turns 4200 at 70 and 5000 at 80. Needless to say I like the former better than the latter. The R100 has a 32:11 rear end, and the 1982 RS has powder coat covering the differential. Were there different transmission ratios? or is the gearing difference in the differential? The RS has a new transmission. How big a deal would it be to swap out the differentials?
Thanx
Thanx