This high quality accessory is the steel exhaust gasket for 50cc, 125cc, and 150cc GY6 Engines from NCY NCY is well known in the competitive riding market as the brand to use when modifying your rideDescription This high quality accessory is the steel exhaust gasket for 50cc, 125cc, and 150cc GY6 Engines from NCY. NCY is well known in the competitive riding market as the brand to use when modifying your ride. Let Monster Scooter Parts be your first source for accessories and mods from NCY with our great steel exhaust gasket.NCY Exhaust Gasket Vento / GY6 (steel)Steel & steel construction For use with GY6 engine variants.Dimensions: ID: 27 mm Bolt to bolt spacing: 45-51 mm0500-1008