Polini 47.6 Cylinder Kit Piaggio LC Runner ZIP NRG MC3 SR Quartz

Description: POLINI ALUMINUM CYLINDER KIT 140.0207PIAGGIO GILERA LC ENGINES DIAMETER 47.6 CONNECTING ROD 85 STROKE 39.3 PIN 12 70cc CHARACTERISTICSAluminum 6 decantings split exhaust with crossbar Ø 47.6mm stroke 39.3mm Piston pin Ø 12mm incl. cylinder head 70cc ATTENTION THIS KIT MUST BE FITTED WITH POLINI CRANKSHAFT cod. 210.0020 The aluminum cylinder, with closed-deck cooling system, stands out for the particular specific heat treatment to harden the material and be non-deformable even at the highest temperatures. The barrel has a nickel-chrome coating. The head surface is new compared to that of other cylinder kits on the market: it is characterized by nickel plating to prevent the triggering of detonation and is subsequently machined on advanced numerically controlled centers which rectify it with a centesimal tolerance. The head surface is thus perfectly coupled to the cylinder, improving the combustion phase in the combustion chamber and favoring a longer life of the head and of the cylinder itself. Unique distribution diagram in terms of performance characteristics. Piston cast by gravity in light alloy with high silicon content with a chromed, ground and lapped spheroidal cast iron segment. The head is cast by gravity in a single block and then heat treated to harden the material as for the cylinder: the mechanical resistance can thus be compared to that of a head machined from solid material. CRANKCASE BORING AND CRANKSHAFT REPLACEMENTIt is essential to bore the crankshaft seat and the cylinder seat in the crankcase. To assemble the Big Evolution kits it is necessary to replace the original crankshaft with the new Polini one complete with 85 mm connecting rod. cod. 210.0020 APPLICATIONS:APRILIA : SR 50 R-FACTORY (Piaggio engine)DERBI : GP1 50 2001-2003GILERA : DNA 50 - RUNNER50 - SP - RESTSPIAGGIO : EXTREM LC - NRGMC3 H2O - NRG-NTT-MC2 - NTT - QUARTZ - ZIP 50 SP H2O - ZIP 50 SP H2O mod.2000The aluminum cylinder, with closed-deck cooling system, stands out for the particular specific heat treatment to harden the material and be non-deformable even at the highest temperatures. The barrel has a nickel-chrome coating. The head surface is new compared to that of other cylinder kits on the market: it is characterized by nickel plating to prevent the triggering of detonation and is subsequently machined on advanced numerically controlled centers which rectify it with a centesimal tolerance. Unique distribution diagram in terms of performance characteristics. Piston cast by gravity in light alloy with high silicon content with a chromed, ground and lapped spheroidal cast iron segment. The head is cast by gravity in a single block and then heat treated to harden the material as for

Price: 595.2 USD

Location: Bellaveduta

End Time: 2025-01-26T14:06:06.000Z

Shipping Cost: 0 USD