Cast iron 47mm cylinder Kit for Vespa Ciao, Bravo, Grande, Si, etc.
Perhaps the largest transfers of any Vespa moped kit? Lots of ports too. 12mm wrist pin.
Comes with cylinder, piston, rings, pin/clips, exhaust hardware, head, and gasket set.
This is only for the 4 stud Polini case set! This will not function with your stock 3 stud cases.
From Polini themselves:
"The new Polini Ø 47 cast iron cylinder kit with 4 studs has been designed for a specific combination with the Polini For Race crankcase for all Ciao, Si, Bravo, Boss, Grillo mopeds.
The drilling involves the fixing of the cylinder by means of 4 studs that ensure a more efficient distribution of the stresses during operation and allow a centered discharge with the axis along which the washing process develops and a thin crossbar.
Further technical features: exhaust transfer with booster holes, one piston ring, head gasket in annealed aluminum. All these are important details that guarantee better performance."
140.0136