Clutch pinion with 22 teeth (with straight teeth) from DRT Racing in Italy.
Specially designed for the Polini 23/64 primary kit.
Allows the combination of the Polini straight primary with a Cosa2 clutch. It allows to combine the Polini straight-toothed primary with a Cosa2 clutch, thus obtaining a perfect clutch and a straight-toothed motor housing (relieving the auxiliary shaft support).
Suitable for all Cosa2 clutch types with Ø115mm outer diameter and 8 or 10 springs, such as the BGM Superstrong.

  • The prerequisite for the assembly is a Polini primary gear with 64 teeth which is only available in the complete kit with 23 teeth pinion for the old clutch type with 7 springs

    Note: Not to be used with the original helical clutch pinions
  • (US)


    We recommend the BGM Pro Street gear oil (BGM2025, corresponds to specification API GL-3) as lubricant.


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    Gearbox shift scooter
    Number of teeth small primary gear
    22
    Type of gearing
    gerade
    Combinable primary wheels
    64 Zähne gerade verzahnt (Polini Ritzel)