Malossi, Cylinder Kit; GP1/Runner 50

68cc cylinder kit for water-cooled Piaggio engines- Material: wearproof, laminate special cast iron - Recalculated heat exchange surfaces - NC machine-tool machining - Transfer and exhaust disigned for maximum efficiency - Lightened and reinforced, special aluminium alloy pistons with a high silicon content - Optimized compression ratioFor the following engines:Piaggio * 50 2-stroke water-cooled Scooter 1995-1999Piaggio Scooter * 50 2-stroke water-cooled 1998 - (short motor housing)Piaggio Scooter * 50 2-stroke water-cooled 1998 - (mid-length motor housing) Piaggio Scooter * 50 2-stroke water-cooled 1998 - (long motor housing)For the following vehicles:* Aprilia SR 50 2004 - watercooled (Piaggio engine)* Aprilia SR 50 R FACTORY (carb version)* Derbi GP1 50 2001-2002* Derbi GP1 50 2003* Derbi GP1 50 * Euro2 2005 () with chain drive* Derbi GP1 50 * Euro2 Race 2005-2007 () with chain drive* Euro2 Derbi GP1 50 Open 2006-2009 () with chain drive* Gilera DNA 50 2000-2002* Gilera DNA GP EXPERIENCE 50 2003-2004* Gilera DNA 50 2005-2007* Gilera RUNNER 50 Purejet 2005-2008 RST (14 "front wheel)* Gilera RUNNER 50 watercooled 1997-2000 with rear disc brakes (12 "front wheel)* Gilera RUNNER 50 watercooled 1997-2000 with drum brakes and rear (12 "front wheel)* Gilera RUNNER 50 watercooled 2002-2004 with rear disc brakes (12 "front wheel)* Gilera RUNNER 50 watercooled 2005-2009 RST (14 "front wheel)* Water-cooled Piaggio NRG 1994-1996* Water-cooled Piaggio NRG 1996-1998 MC2 with rear disc brakes* Water-cooled Piaggio NRG 1996-1998 MC2 with rear drum brake* 1999-2001 Piaggio NRG EXTREME water cooled with rear disc brakes* Piaggio NRG MC3 watercooled 2001-2004 with rear disc brakes* Water-cooled Piaggio NRG 2005-2006 POWER with rear disc brakes* Water-cooled Piaggio NRG 2007-2009 POWER with rear disc brakes* Water-cooled Piaggio NTT 1995-1996* Piaggio zip 50 2-stroke water-cooled 1996-1999 SP* Piaggio zip 50 2-stroke water-cooled 2000-2004 SP * 50 2-stroke Piaggio ZIP SP 2006-2009 Euro2 watercooledReplacement pistons are available here.Replacement rings are available here. Not legal for use in California on pollution controlled vehicles.Check local laws before installing.This product is not intended for use on public roads or land. CARB (CA Air Resource Bureau) Restricted, NOT FOR SALE IN CALIFORNIA)