Crankshaft -POLINI (rotary slider)- Vespa V50, PK50 S (Ø 19mm cone)

Polini rotary slider crankshaft for Vespa V50 and PK50 S

Very high quality Polini tuning crankshaft. Solid CNC connecting rod, slotted at the top and bottom. Extended intake angle to increase the time cross-section of the intake and increase performance over the entire rev range. A prerequisite when using larger cylinders/carburetors. However, it also has a noticeable effect on original cylinders.

Well balanced, the Polini shaft offers smooth running.

Technical data:

• Cone: small type (Ø19mm shaft seal)

• Stroke: 43 mm

• Piston pin: 12 mm

Suitable for:

• Vespa V50, 50N, 50 Special, PK50 S