Micylindrical BMW motorcycle workshop manual with two valves. Cover the models: R45, R50, R60, R65, R75, R80 (/7, G7S, GS, ST, RT, R), R90 (/6, S), R100 (/7, GS, RS, CS, R, RT, S, SP, T, TR), Manufactured between 1970 and 1996. It also includes the versions of the Paris - Dakar test. This manual is written in Spanish.