YSS High Performance Adjustable Rear Gas Shock for 50cc – 170i Genuine BuddyHigh-end adjustable performance rear shock for Genuine Buddy scooters, with piggyback reservoir. Spring preload is adjustable with ring nuts. Drastically improve your ride!YSS is one of the most prestigious motorcycle suspension manufacturers in the world. We are proud to carry their scooter line at a stock replacement and a performance level.Measures 11.25 inches eyelet to eyelet. Top Eye 20.5mm wide Fork 20mm wide