Polini 166.0083/12 H2o Ø47mm Yamaha/minarelli Cylinder Kit

Polini 166.0083/12 H2o Ø47mm Yamaha/minarelli Cylinder Kit Silver . Unleash your Yamaha/Minarelli scooter´s potential with the new Polini 166.0083/12 H2O cylinder kit. Engineered for high performance and enhanced reliability, this cast iron cylinder features 6 precisely machined ports and controlled wall roughness for optimal piston movement. The piston is crafted from a high-silicon alloy for superior heat resistance, complemented by durable, wear-resistant cast iron rings. The redesigned aluminum cylinder head boasts a high compression combustion chamber with optimized turbulence. This kit, with its Ø12mm piston pin, requires a compatible crankshaft and is ideal for circuit use, amplifying your scooter´s power and responsiveness. New Polini thermal groups for Yamaha Minarelli engines. Polini Motori presents the new range of kits for Minarelli engines, model CY, MY, CW with piston pin increased to Ø 12 mm. This increases the reliability of a part that is subjected to great stress.The cylinder is made of cast iron, with 6 ports. It is machined with special machines to achieve a high level of performance, with sliding walls of controlled roughness for greater cylinder-piston sliding. The diagrams and discharge transfers are specifically designed and manufactured to work in harmony with both the original silencers and those of the Polini Scooter Team.The piston is made of a special alloy with a high percentage of silicon to guarantee maximum resistance to high temperatures.The high-strength spheroidal cast iron rings are wear-resistant, ground, and lapped. The cylinder head is made of a special aluminum alloy with a high coefficient of thermal exchange. The combustion chamber has been completely redesigned for a high compression ratio with high turbulence. Polini thermal groups for Yamaha Minarelli engines must be combined with suitable crankshafts with a Ø 12 mm piston pin.Fits:- APRILIA: AREA 51 - GULLIVER 50 LC - RALLY 50 LC - SONIC 50 GP (CY) - SR 50 2T mod. 94, 95, 96 H2O - SR 50 2T LC STEALTH, RACING, NETSCAPER- BENELLI: 491 50 RR, RACING, SP, SPORT - K2 50 LIQUID COOLED- BETA: ARK 50 LC, SERIE K - EIKON 50- ITALJET: DRAGSTER 50 LC- MALAGUTI: F 12 50 DIGIT KAT E2 (phase 1) - F 12 50 PHANTOM LC - F 12 50 PHANTOM (phase 2) - F 12 50 PHANTOM H2O (phase 2) - F 15 50 H2O FIREFOX - F 15 50 H2O FIREFOX (phase 2) - F 12 50 PHANTOM R 2007 LC- MBK: NITRO 50 H2O - NITRO 50 H2O from 1996->- YAMAHA: AEROX 50 2T H2O - AEROX 50 2T H2O from 2004-> - JOG 50 LC RR- RIEJU: RS SPORT, NKD 50 LCSpecifications- Homologation: Only for use on the circuit, Not approved- Composition: AluminumCompatibility:APRILIA AREA 51 SUPERBIKE :- APRILIA- AREA 51 SUPERBIKE- 50- 2001- APRILIA- AREA 51 SUPERBIKE- 50- 2000APRILIA AREA 51 :- APRILIA- AREA 51- 50- 2002- APRILIA- AREA 51- 50- 2001- APRILIA- AREA 51- 50- 2000- APRILIA- AREA 51- 50- 1999- APRILIA- AREA 51- 50- 1998APRILIA GULLIVER 50 (LC) :- APRILIA- GULLIVER 50 (LC)- 50- 2002- APRILIA- GULLIVER 50 (LC)- 50- 2001- APRILIA- GULLIVER 50 (LC)- 50- 2000- APRILIA- GULLIVER 50 (LC)- 50- 1999- APRILIA- GULLIVER 50 (LC)- 50- 1998- APRILIA- GULLIVER 50 (LC)- 50- 1997- APRILIA- GULLIVER 50 (LC)- 50- 1996- APRILIA- GULLIVER 50 (LC)- 50- 1995- APRILIA- GULLIVER 50 (LC)- 50- 1994- APRILIA- GULLIVER 50 (LC)- 50- 1993APRILIA RALLY 50 (LC) :- APRILIA- RALLY 50 (LC)- 50- 2006- - APRILIA- RALLY 50 (LC)- 50- 2005- APRILIA- RALLY 50 (LC)- 50- 2004. tradeinn Motardinn