NCY Compression Spring (GY6), 1000 rpm

NCY compression/contra spring (black, 1000rpm) for Genuine Buddy 125/150/170, Blur 150 scooters and Chinese 125/150 GY6 engines. Compression springs (or contra springs) supply the pressure to engage the belt and determine how quickly the CVT transmission changes from low to high gear. A 1000rpm spring will go into a higher gear than a 2000rpm spring. Specifications: Spring length: 147.9mm Spring inner diameter: 48.5mm Spring outer diameter: 58mm Wire gauge: 4mm Compatibility: Genuine Buddy 125 Genuine Buddy 150 Genuine Buddy 170i Genuine Blur 150 157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes: 157QMJ 161QMK 152QMI 1P61QMK YN1P57QMJ 1P52FMI 154FMI JJ157QMJ 1P57QMJ BN157QMJ BN161QMK-A Other QMJ, QMK, and QMI models Don'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.