Crankshaft - FABBRI RACING (Primatist connecting rods, for Quattrini C1 and Pinasco engine cases, journal diameter = 91 mm, fits only with spindles) - Solid-flange, 56.5 mm stroke, 110 mm connecting rod (Ø 24 mm taper)

FABBRI RACING Crankshaft for Quattrini C1 Engine Case

Very high-quality racing crankshaft from Fabbri Racing. Compatible with all small-frame engines based on the Quattrini C1 crankcase. It is designed to accommodate all conventional small-frame cylinders (e.g., Quattrini M1B 60 GTR / M1L 60 GTR). Thanks to its very large sealing surface, it also offers plenty of flexibility for aftermarket cylinder conversions.
With a 56.5 mm stroke and 110 mm connecting rod length, the Fabbri Racing crankshaft provides the foundation for extremely powerful engines. Thanks to the crankshaft’s outstanding material quality, these high power outputs and RPMs can be sustained over the long term.

The 5.5 mm longer stroke is made possible by an increased diameter of the crankshaft journals.
Therefore, it is necessary to adjust the diameter of the crankcase to accommodate the shaft (a process known as “boring out”).

In combination with the high-quality CNC connecting rod from Primatist, sustained power outputs well above 30 PS are easily achievable.

• Stroke: 56.5 mm

• Connecting rod: CNC from Primatist

• Connecting rod length: 110 mm

• High-quality connecting rod journal and roller bearings

• Taper: flat/large

• Shaft seal seat: Ø24 mm

CONCLUSION: A very durable race crankshaft at a fair price