Name Polini Cylinder Kit "Corsa" 70cc cast iron Piaggio NRG / Runner Item No. P140.0183/R Brand Polini Homologation No Displacement 70cc Stroke Original Conrod Length Standard Product Line Racing Material Cast Iron Engine Type 2-stroke Cooling Type LC Bore 47,6 mm Piston Pin 12 mm Number of Piston Rings 2 Cylinder Head Included
The kit includes:
- 70cc Cast Iron Cylinder "Corsa", with 5 transfer ports and simple, oval exhaust port
- Two-Ring Piston "Corsa"
- High Compression Monobloc Cylinder Head
- Gasket Set for mounting
- Carbon Fiber Reed Petals, 2x (for original reed valve)
Polini based this cylinder kit on their 70cc Cast Iron Sport kit and redesigned it to improve performance and give it more power. More specifically, Polini modified the cylinder's port timings (longer) and redesigned the shape of the exhaust port resulting in an increase of power up to 10/13hp (with a 17.5mm carburetor and a sports exhaust). The piston was also a modified as a special "Corsa" piston even though it remains a two-ring piston.
Polini 70cc Cast Iron Cylinder Kit "Corsa" Piaggio NRG / Runner is not street-legal.
- Suitable for (31)
Your product goes with the following manufacturers and their models:
SR 50cc Funmaster LC (after 07/2003) - Piaggio engine, SR 50cc LC (after 07/2003) - Piaggio Engine, SR 50cc R Factory i.e. LC (after 2005) - Piaggio Engine, SR 50cc R LC (after 2005) - Piaggio Engine, SR 50cc Racing LC (after 07/2003) - Piaggio Engine, SR 50cc Sport LC (after 07/2003) - Piaggio Engine, SR 50cc Street LC (after 07/2003) - Moteur Piaggio
Atlantis 50cc LC (after 06/2002) - Piaggio, GP1 50cc LC - Piaggio, GP 1 Open 50cc, GP1 Racing / Revolution 50cc LC - Piaggio, GP 1 Racing 50cc, GP 1 Replica 50cc, GP 1 Revolution 50cc
DNA 50cc LC, Runner 50cc LC (1999 - 2000), Runner 50cc LC (after 2004), Runner 50cc LC (before 1999), Runner 50cc LC CAT (after 2001), Runner SP 50cc LC (after 08/2004)
NRG 50cc LC, NRG Power DD 50 (after 2005), NRG mc2 50cc LC (after 1998), NRG mc2 50cc LC (before 1998), NRG mc2 DD 50cc LC (after 1998), NRG mc2 Extreme 50cc LC, NRG mc3 DD 50cc LC CAT, NTT 50cc LC, Quartz 50cc LC, Zip 2 SP 50cc LC, Zip SP 50cc LC
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