1991 BMW k100rs for sale. Here is what I know about the k100rs: - Has 90,000 miles on it with service records. - Clean Illinois Tittle. - Spline lubed recently. - Abs light is flashing. - Front fork seals in need of replacing. - Brakes and rotors front & rear look good still have plenty of life. - Fresh battery. - Rear luggage rack. With brackets to mount saddle bags. - Engine sounds great and has good compression. - Box full of spare parts.