MBK 51 (ref: 491185)

The DOPPLER ER2 centrifugal clutch pulley is your moped's ultimate asset. It is entirely cut from solid in aluminium and is made of a pressed-steel bell, an aluminium-machined pulley and three clutch pulleys. The advantages are unquestionable: high rpm engagement (which means netter start), the possibility to mount a direct-inlet variator (MBK mopeds in particular) while ensuring the clutch function. A freewheel needle cage is integrated for the starts.