Item Type: Exhaust Pipe MufflerMaterial: MetalHole Diameter: Approx. 32mm/1.3inFitment: Suitable for 90cc, 110cc ,125cc ,150cc ,160cc ATV Pit Bike MotorcycleSuitable for most Chinese import Dirt Pit Bike QUAD ATVReplacement for KXL BBR TTR CRF Replacement for XR50 CRF50 DIRT Bike 1、The exhaust pipe muffler is replacement for KXL BBR TTR CRF and replacement for XR50 CRF50 DIRT Bike. 2、Stable Performance: The exhaust pipe silencer can be used to eliminate the noise emitted by motorcycle engines. 3、Advanced Material: Made of high quality metal material, the exhaust pipe silencer is sturdy, corrosion resistant and durable. 4、Perfect Fitting: Built to meet original standard specification, and the exhaust pipe silencer strictly follows the factory quality control. 5、Simple Installation: The installation is simple and does not require complicated operations, which convenient for your use.