Flywheel lighten models up to 1975
Fits models /6, R90S up to September 1975. The mounting srews are M11x1.5 .
The starter gear has 8 teeth and the flywheel have 93 teeth.
The BMW weight is approx. 3750 g and we reduce the weight approx. 1070gr. The weight after the machining will be approx. 2500 g.
Please send us your flywheel in exchange.
The flywheel is fixed with 5 screws.
Fits 38 and 40 mm down pipes