For tuning cylinders the standard shaft with its very short intake time cannot keep up
BGM4600 (BGM)
compressed and hardened basket
3 Nm torque at 6000 rpm
HengTong brake pumps were used on a variety of different Vespa/Piaggio
Newfren Vespa Clutch Plate Kit V50, V90, SS50, SS90, PV125, ET3, PK50-125 FRAME For tuning cylinders the standardNewfren Vespa Clutch Plate Kit V50, V90, SS50, SS90, PV125, ET3, PK50 125 Small frame Vespa clutches require careful tuning to achieve the right balance between engagement and disengagement. Stock models come with three friction discs, which work well for standard engines. If you're running a higher output motor, upgrading to a four disc setup offers improved holding powerthough tight tolerances mean clean separation can be challenging in confined