The BMW R 100 S model is a Sport touring bike manufactured by BMW . In this version sold from year 1977 , the dry weight is and it is equipped with a Two cylinder boxer, four-stroke motor. The engine produces a maximum peak output power of 65.00 HP (47.4 kW) @ 6600 RPM and a maximum torque of . With this drive-train, the BMW R 100 S is capable of reaching a maximum top speed of 196.0 km/h (121.8 mph) . On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the BMW R 100 S has a frame with front suspension being and at the rear, it is equipped with . Stock tire sizes are 3.25-19 on the front, and 4.00-18 on the rear. As for stopping power, the BMW R 100 S braking system includes Dual disc size at the front and Expanding brake size at the back.