DESCRIPTION: This NCY adjustable Secondary Sliding Sheave Assembly is compatible with Genuine, Honda, SYM and 139QMB GY6 50cc engines. The assembly comes with two sets of ramp angles, one steeper than the other, which allow you to adjust how quickly the pulley engages. A quicker engagement means more power off the line, and more gradual engagement gives you more power at speed.Specifications:Rear Pulley Plate OD: 118.5mm, Shaft ID: 17.43<21mm, OD: 34<45.1mm, H: 68.73mmSecondary Slider Plate OD: 118.5mm, Funnel ID: 33.5mm, OD: 43mm / H: 32.70mmSecondary Spring Seat/Funnel ID: 43mm, OD: 45<61mm, H: 30mm3x Secondary Slider Pins OD: 5<6mm, H: 9.5mmStainless Steel Clutch Nut: M282x Rubber O-rings (pre-installed)Compatibility:This product is compatible with the models noted below as well as 139QMB GY6 engines with the engine codes noted below.Genuine Buddy 50Genuine RoughHouse 50Honda Dio 50Honda Elite 50SYM DD 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsDon't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.About NCY:NCY is the aftermarket performance parts leader for most popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.Made in Taiwan.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.
SPECIFICATIONS: Rear Pulley Plate OD: 118.5mm, Shaft ID: 17.43<21mm, OD: 34<45.1mm, H: 68.73mmSecondary Slider Plate OD: 118.5mm, Funnel ID: 33.5mm, OD: 43mm / H: 32.70mmSecondary Spring Seat/Funnel ID: 43mm, OD: 45<61mm, H: 30mm3x Secondary Slider Pins OD: 5<6mm, H: 9.5mmStainless Steel Clutch Nut: M282x Rubber O-rings (pre-installed)
COMPATIBILITY: This product is compatible with the models noted below as well as 139QMB GY6 engines with the engine codes noted below.Genuine Buddy 50Genuine RoughHouse 50Honda Dio 50Honda Elite 50SYM DD 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsDon't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.About NCY:NCY is the aftermarket performance parts leader for most popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.Made in Taiwan.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.
139QMB ENGINES: GY6 50cc engines. The assembly comes with two sets of ramp angles, one steeper than the other, which allow you to adjust how quickly the pulley engages. A quicker engagement means more power off the line, and more gradual engagement gives you more power at speed.
NOTE: d below as well as 139QMB GY6 engines with the engine codes noted below.Genuine Buddy 50Genuine RoughHouse 50Honda Dio 50Honda Elite 50SYM DD 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsDon't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle.About NCY:NCY is the aftermarket performance parts leader for most popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.Made in Taiwan.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.