Stage6 Primary Gear 13*43 Kit (Aprilia, JOG, Zuma 50)
Description: Stage6 Primary Gear 13*43 Kit for Aprilia, JOG, Zuma 50, and many other 50cc base engines. Taller gears in the transmission reduce the overall reduction factor of the gearbox. If the engine is powerful enough to pull the taller gears, this modification will also raise the top speed. Only use with tuning kits! Original cylinders are normally not powerful enough to pull this sort of gearing. Contrary to common gear units, the ones from Stage6 come ready pressed and are available at an unbeatable price. Simply replace the old gear unit with the new one - and that's it! Attention! The intermediate gear needs to be replaced by the original on BWS/Zuma 1988-2011.
Include the following Transmission gear kit.
• 1x Front Counter Shaft Teeth: 13 / Spline L: mm / OD: mm / Overall L: mm
• Gear Press-On Area L: mm x OD: mm / Ends L: mm x OD: mm
• 1x Rear Final Drive Gear Teeth: 43 / Inner Spline:
• OD: mm / ID: mm / W: 1mm
• 1x Clutch Drive Shaft Teeth: / Inner Spline:
• OD: mm / ID: mm / W: mm
• Made in Taiwan
• Fit Aprilia 50
• Fit JOG 50
• Fit Zuma 50
Supported Models: APEX Pro MXR 50, Aprilia SR 50 LC, Benelli 491 RR 50, Benelli K2 50 LC, Beta Ark 50 LC, Beta Eikon 50, Garelli GSP 50, Italjet Dragset 50, KTM Ark 50 LC, MBK Nitro 50, MBK Nitro Naked 50, Malaguti F12 Phantom 50 LC, Malaguti F15 Firefox LC, Motowell Magnet RS 50, Streak Access 50, Yamaha Aerox 50, Yamaha Jog RR 50, and virtually any other scooter engine with these measurements.
Item Weight & Package Dimensions:
• 1.281 pounds | 6.5" (L) x 5.5" (W) x 1.308" (H)