Primary gear ratio BGM PRO Vespa Largeframe
Longer primary ratio for ever more power in Vespa engines New power and torque-focused engine concepts in Vespa Largeframe Segment make the use of a longer primary translation almost inevitable. A longer reduction stretches the available torque of your motor and the existing torque curve can be used more effectively. This means that you drive at the same speed at a lower speed or vice versa [...]
