Name Metrakit Cylinder Kit "Pro Race 3" 70cc Piaggio NRG / Runner Item No. MK800V1936 Brand Metrakit Homologation No Displacement 70cc Stroke Original Conrod Length Standard Product Line Hyper racing Material Aluminium Engine Type 2-stroke Cooling Type LC Bore 47,6 mm Piston Pin 12 mm Number of Piston Rings 1 Cylinder Head Included
With the new Pro Race 3, Metrakit set out to really improve on the older version. And they achieved that goal by improving the design of the combustion chamber with increased compression for more torque and power. Transfer port design also underwent an overhaul - 5 instead of 6, with modified port timings. The exhaust port with boost ports was not redone for this version.
The Pro Race 3 cylinder is complemented perfectly by the single-ring piston by manufacturer Vertex, with a 47.6mm diameter and anti-wear graphite coating. A cylinder gasket kit and cylinder spacers for adjusting squish clearance are included.
The Metrakit 70cc Cylinder Kit "Pro Race 3" Piaggio NRG / Runner is definitely one of the most powerful 70cc kits; we recommend adding the Pro Race 70cc crankshaft and the Pro Race 3 exhaust to get a well-balanced set-up. We also recommend a 24mm or 28mm carburetor for even more power.
- 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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