These high quality accessory 18×14 roller weights for scooters are from NCY, a very well known manufacturer of aftermarket competitive riding scooter parts and accessories These top quality roller weights are used in GY6 150 engine scooters and go-kartsDescription These high quality accessory 18×14 roller weights for scooters are from NCY, a very well known manufacturer of aftermarket competitive riding scooter parts and accessories.These top quality roller weights are used in GY6 150 engine scooters and go-karts. The 18×14 size is especially popular with Buddy 125, and Genuine Blur owners. Buddy 125 takes 11.5g stock rollers, and Blur takes 14g stock, so you have some leeway to tailor your variator to your requirements.Roller weights are used for fine tuning your scooter to get the most out of what you need from your machine. These 18×14 roller weights will fit ALL Yamaha based 50cc horizontal 2-stroke engines.A good set of roller weights are an important tuning device and they w