Description

Motor chain-wheel set, 4mm thick, for 415 chain. Suitable for models: Q140MD, 144, 144i (all years). Different dimensions. Includes screws and anti-unwinding washers.

When changing a chain-wheel to a different diameter (number of teeth), it is necessary to reset the circumference of the wheel in the display set-up menu so that the speed and distance travelled will be displayed correctly.