47cc 49cc 2 Stroke Universal Motorcycle Exhaust Pipe Silencer w/ Gaskets & Bolts for ATV Dirt Bike Scooter Quads 47cc 49cc 2 Stroke Universal Motorcycle Exhaust Pipe Silencer w/ Gaskets & Bolts for ATV Dirt Bike Scooter Quads Bolt Spacing:1.53″ (39mm) Universal For Dirt Bike More than 250cc. 100% Brand New, Never Mounted, High Quality. Easy to install??Instruction of Installation is NOT Included. Product description Fitment:Universal For Dirt Bike More than 250cc.Specifications:Color: BlackMaterial: MetalQuantity: 1 PcsBolt Spacing:1.53″ (39mm)Features:100% Brand New, Never Mounted, High Quality.Easy to install??Instruction of Installation is NOT Included.