Crankshaft -FABBRI RACING (connecting rod primatist, for diaphragm intake, cheeks=Ø87mm, fits only with spindles) full cheek 54,5mm stroke, 105mm connecting rod- Conversion shaft Vespa PK50 XL/XL2 to 125cc (Ø 20mm cone)

Fabbri Racing crankshaft 54.5/105 with Ø87mm - for powerful Vespa reed engines

High-quality tuning shaft from Fabbri Racing. Suitable for all smallframe engines with cylinders from 125cc and reed intake on the cylinder or in the crankcase. The overlap on the crankpin is increased for maximum torsional rigidity. As a result, the crankshaft has a larger diameter (87 mm instead of 83 mm). This requires the crankcase to be spindled to Ø88 mm. This very sensible modification means that the shaft, together with the high-quality CNC connecting rod from Primatist, can also be used permanently in engines with over 30 hp.

Another special feature is the 6204 ball bearing used on both sides.

• Stroke: 54.5 mm

• Connecting rod: CNC from Primatist

• Connecting rod length: 105 mm

• High-quality crank pin and roller bearing

• Cheek diameter: 87 mm

• Spindle dimension crankcase: 88 mm

• Cone: blunt/large

• Shaft seal seat: Ø20 mm

• 6204 ball bearing on both sides

• Designed for pistons with Ø57-60 mm
  
  
  
  
  

CONCLUSION: Very resilient race shaft at a fair price