Twin cooling of the transmission group with the “Air Speed Drive” developed by Polini. By using the AIR SPEED DRIVE you improve decisively the aeration inside the crankcase and consequently it increases both the engine performance for long distances covered and the belt life. The Polini SPEED DRIVE and CERAMIC SPEED DRIVE for Piaggio and Yamaha include the AIR SPEED DRIVE fan too.
APRILIA: AREA 51 - GULLIVER 50 - GULLIVER 50 LC - RALLY 50 - RALLY 50 LC - SCARABEO 50 STREET 2T RESTYLING Piaggio - SR 50 R, FACTORY (Piaggio) LC - SR 50 mod.1993 - SR 50 mod.94, 95, 96 H2O - SR 50 LC STEALTH, RACING, NETSCAPER - SR 50 mod.94, 95, 96 Air - SR 50 WWW - SCARABEO 50 2T (Yamaha) - MOJITO 50 2T Piaggio - SR 50 R, FACTORY (Piaggio) LC EURO 4
ATALA: CAROSELLO 50
BENELLI: 491 50 GT, ST - 491 50 RR, RACING, SP, SPORT - K2 50 - K2 50 LIQUID COOLED - NAKED 50
BETA: ARK 50 AIR - ARK 50 LC, SERIE K - EIKON 50
DERBI: GP1 50 2001-2003
GILERA: DNA 50 - EASY MOVING 50 - RUNNER 50, SP, POGGIALI - STALKER 50 - STORM 50 - TYPHOON 50 fino al 1999
ITALJET: DRAGSTER 50 LC - PISTA 50 1/2, YANKEE, SCOOP 2/3
KTM: K 50
MALAGUTI: CENTRO 50 SL - CIAK 50 - F 12 50 DIGIT KAT EURO 2 (fase 1) - F 12 50 PHANTOM 2000 - F 12 50 PHANTOM LC - F 15 50 H2O FIREFOX
MBK: ACTIVE 50 - BOOSTER 50 - BOOSTER 50 dal 2004 -> - BOOSTER 50 R, ROCKET - BOOSTER 50 NEXT GENERATION - BOOSTER 50 TRACK - FORTE 50 - MACH 50 G - NITRO 50 H2O - OVETTO 50 - NITRO 50 H2O dal 1996->
MOTRON: STING - SYNCRO - THUNDER
PIAGGIO: DIESIS - EXTREM - EXTREM LC - FLY 50 2T - FREE - LIBERTY 50 2T - MC2 50 (1998) - NRG MC3 H2O - NRG, NTT, MC2 - QUARTZ - SFERA 50 - SFERA 50 RESTYLING - ZIP 50 AIR - ZIP 50 SP H2O dal 2001 - ZIP 50 SP H2O dal 1996 al 2000 - ZIP 50 AIR mod.2000 - TYPHOON 50 (2001-2010) - TYPHOON 50 Euro 2 dal 2011->
VESPA: VESPA 50 ET2, LX
YAMAHA: AEROX 50 2T H2O - AEROX 50 2T H2O dal 2004-> - BW'S 50 dal 2004-> - BW'S 50 NEXT GENERATION - BW'S 50 ZUMA - NEO'S 50 - SLIDER 50 - SPY 50 - WHY 50 - JOG 50 LC RR
RIEJU: RS SPORT, NKD 50 LC
To fit on Polini half pulleys for Piaggio and Yamaha and on the original Piaggio half-pulleys.
