Transmission Equation for Puch N50


The transmission equation for Puch N50 has the form;

C*HB=FV

or

C*(Speed)(Rear_Sprocket)=(Front_Sprocket)(Engine_Revolutions)


The constant C has the approximate value 50 for 3-gear engines and 40 for 4-gear engines.
The equation is not entirely accurate because tire diameters vary slightly, but for a normal tire the error will be negligible.
The following form calculates one quantity given three quantities. The field of the requested quantity is left blank.

3-gear 4-gear
Front Sprocket teeth
Rear Sprocket teeth
Engine Revolutions rpm
Speed km/h