Polini Up Gear Set (13x44); Yamaha Zuma 50

This Polini aftermarket 13x44 up-gear set fits Yamaha Zuma 50 and bikes with Minarelli engines noted below. The set increases the top speed and lowers RPM while running full throttle. It is recommended this gear set be used after installing a big bore cylinder kit because a stock engine will not have enough power to make use of a taller gear set.

Original Parts For Scooters SKU 146-38

Specifications:

• Gear ratio: 13/44
• Requires 10x1.25mm nut (not included)

Compatibility:

About Polini: For over 50 years, Polini has stood unparalleled in the racing and tuning scene.  Polini has powered both off-road and road racing legends to multiple MXGP and MotoGP world championships including the legendary Valentino Rossi.   Polini sets the standard for high-end tuning and top-quality performance components.

Here is a comprehensive list of this parts compatibility:

BENELLI: 491 50 GT, ST - 491 50 RR, RACING, SP, SPORT - K2 50 - K2 50 LIQUID COOLED - NAKED 50
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 - JOG 50 LC RR - NEO'S 50 - SLIDER 50 - SPY 50
APRILIA: AMICO 50 - AREA 51 - GULLIVER 50 - GULLIVER 50 LC - SR 50 2T LC STEALTH, NETSCAPER - SR 50 2T mod.1993 - SR 50 2T mod.94, 95, 96 Air - SR 50 2T mod.94, 95, 96 H2O - SR 50 2T WWW
BETA: ARK 50 AIR - ARK 50 LC, SERIE K
PGO: BIG MAX 50
MBK: BOOSTER 50 - BOOSTER 50 dal 2004 -> - BOOSTER 50 NEXT GENERATION - BOOSTER 50 R, ROCKET - BOOSTER 50 TRACK - FLIPPER 50 - MACH 50 G - NITRO 50 H2O - NITRO 50 H2O dal 1996-> - OVETTO 50
ATALA: CAROSELLO 50
MALAGUTI: CENTRO 50 SL - F 12 50 PHANTOM 2000 - F 12 50 PHANTOM LC - F 15 50 H2O FIREFOX
ITALJET: DRAGSTER 50 LC

Made in Italy

This product is intended for off-road use only.

This product is not intended for use on public roads or land.

This product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.

*Performance upgrades are considered racing parts and are not covered by warranty.