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Crankshaft -RACING reed intake full circle 54mm stroke, 105mm conrod- Vespa PK125 XL2, PK125 ETS (Ø 24mm cone)

partnumber 1610012

Delivery time: 1-2 days, Express 1 day*
Crankshaft with 3 mm of extra stroke to fire up all smallframe engines.
Nuova Mazzuchelli provides scooter enthusiasts with a full-circle shaft to increase initial compression. The con-rod has a length of 105 mm, instead of the original 97 mm. This difference of 8 mm is commonly evened out by means of a spacer under the spigot, which in turn does not affect valve timings. The additional stroke of 3 mm can be divided between head and spigot gaskets, according to desired engine characteristics. In total, a great way to influence characteristics of the cylinder.
Concerning the con-rod, it appears to be of solid quality and has a robust silver cage at the lower bearing. It is especially important for high-revving direct-intake cylinders to ensure an adequate fuel-oil ratio is employed.
To be able to install the shaft, machining is needed. This is due to the enlarged diameter of the crankshaft which creates an increase in stroke.
Vielen Dank für Deine Bewertung!

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