For R1100RT, R1100RS, R850/1100GS, R850/1100R.

Introduction, Maintenance, Motor, Engine electrics, Fuel preparation and control, Exhaust system, Clutch, Gearbox, Steering, Brakes, Wheels, Frame, Equipment, Instruments.

Four-stroke, horizontal in line four cylinder, liquid cooled, DOHC, 4 valve per cylinder.
Die cast Aluminum single sided swinging arm with Paralever, central strut, spring preload adjustable to continuously variable levels by mean of hydraulic hand wheel.

BMW C1 was intended to combine the advantages of two-wheeled motorized transportation with the strengths of the automobile.

Liquid cooled, four stroke, single cylinder, DOHC, 4 valves per cylinder.
Steel swingarm with progressive shock linkage.