Vespa PX 125 150 Cosa Racing Crankshaft Polini 60mm Stroke 105mm Conrod

Vespa PX 125 150 Cosa Racing Crankshaft Polini 60mm Stroke 105mm Conrod

• Engine type: 125-150cc, PX
• Crankshaft type: Disc Valve
• Stroke: 60 mm, long stroke
• Conrod: 105 mm
• Connecting rod bearing: 15x19x20 mm
• Pin 15mm
• Cone 24/25mm, M12x1,25
• Ø Oil seal seat on flywheel side: 24 mm
• Ø Bearing seat on flywheel side: 25 mm
• Thread on flywheel side: M12x1,25
• valve timing: 120°/-10° post TDC
• fine balanced
  
  

POLINI's racing crankshaft for Classic Vespa models delivers race-level performance—on the street and on the track.

POLINI racing crankshafts have stood for Italian engineering excellence and uncompromising performance for decades. Whether for ambitious tuning projects, sporty everyday riding, or intense racing—with a POLINI crankshaft, you’re choosing maximum reliability, high revving capability, and a noticeably greater power boost.

• Precision-balanced crankshaft journals
• Reinforced conrods and precision bearings
• Optimized valve timing
• High-quality materials and workmanship

• flow-optimized control cheek
• well balanced
• stable connecting rod
• extended inlet control angle
• trunnion: 20mm

The width of the sealing surface on the rotary vane cheek is 15.8mm wide as on the original PX125/150 shaft.

The extended inlet control angle results in a larger time cross section and allows a significant increase in power over the whole speed band.
Very nice stable shaft which provides more bandwidth in every engine.

FREE UK Delivery on orders placed over £75.

Delivery is available Worldwide. See our Delivery Information page for further details.