X-PRO Exhaust Gasket for GY6 150cc Scooters ATVs Go Karts Moped Quad 4 Wheeler Dune Buggy Please identify X-PRO?. NO. 1 China Motorcycle Parts Brand, Better than OEM parts.Exhaust Gasket. Top Quality Guaranteed. Exhaust Gasket for GY6 150cc Scooters, ATVs, Go Karts Diameter: 30mm ; Duable in use Please check the pictures and specifications for compatibility before placing orders