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Racing Crankshaft MAZZUCCHELLI

for SIP for Vespa P80X/PX80 E
disc valve, stroke 48,0mm,
pin 15mm, valve timing: 140°
/3° post TDC


For years, crankshafts for the Vespa PX80 have been out of production. We took care of the problem and - in collaboration with MAZZUCCHELLI - produced a new racing crankshaft for the PX 80.

Racing crankshafts are a simple and effective tuning upgrade for every disc valve motor. A racing shaft gets higher rpm's, your motor will be agile and have more pep. Better acceleration and higher top speeds are the result. A racing crankshaft has noticeably longer intake timing in comparison to an original crankcase. Your fuel fill will also be higher. The crank flanges are streamlined and polished, turbulence and flow blocks are reduced. The connecting rod is partially a polished edged connecting rod, the lower connecting rod bearing is a silver bearing.

Conclusion: The ideal tuning for a Vespa PX 80 with original stroke. MAZZUCCHELLI stands for longevity and durability.


Racing crankshaft / stroke 48 mm / 25/24 mm, M12

Racing crankshaft with Ø 95 mm crankweb (flywheel side), Ø 97,9mm crankweb (disc valve side), oil seal housing 24mm, bearing housing 25mm, stump cone with M12 thread, incl. connecting rod bearing


SIP-TIP: Not only perfect for original cylinders, but also suitable for sporting setups with MALOSSI 139 or DR 135 cylinder, racing exhaust and 24mm SI carburetor.


SIP Community user "tcpip", Germany:

"Great workmanship, good price. Good product."


The timings stated above were determined viewing in the direction of the clutch side. That means: "138°/6° after TDC: Inlet timing begins 6° after TDC and stays open for 138°.

Please note that the angular degrees given here are approximate values, as the crankshafts are reworked by hand.


OEM Numbers (for the purpose of comparison)  220274 original Welle (PIAGGIO)

Customers also searched for this article with:  race crankcase, racing crankcase, race crankshaft, tuning crankshaft, performance crankshaft

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Racing Crankshafts

This item is in stock in sufficient quantity.

1,996g / piece
Stock on hand   Amount


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Spare Parts
icon scootermodels This product fits the following models
divider Producer/Model divider cc divider Type divider Engine divider Yr. of Const. divider Extra
VESPA P80X/PX80 E 80 V8X1T 2T AC `81-`83
VESPA PX 80 E Lusso/ EFL/ Arcobaleno / Elestart 80 V8X1T 2T AC `83-`90
VESPA PX100 E 100 VIX1T 2T AC `83-`84

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