Cylinder -POLINI cast iron 133 cc- Vespa PV125, ET3 125, PK125

The Polini is the perennial favourite for all small frames. Polini indicates over 9 kW, which is achieved at a speed of 7.200 rpm. Typical for Polini is the rich draft from the speed cellar. This cylinder can still be used as a tourer despite the rather high basic power. With a wide speed range and a full torque over the whole speed range even long distances are not a torture. Due to the surplus power it is possible to accelerate comfortably even from the lowest revs.

Power levels that break the 14 kW mark are by no means unusual. Modifications to the overflow and outlet, however, are unfortunately unavoidable. A racing shaft and a 24 mm carburettor are mandatory.

Our absolute favourite among the racing exhausts is the hammer zombie, which supports the powerful torque of the Polini and still produces powerful steam up to 8,000 rpm. If you like it a bit more comfortable, the VSP Inox is the right choice. A nice torque curve is perfect for touring and protects the material.
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