Features 1、Application: The exhaust muffler pipe is applicable for 49‑80cc 2‑stroke Motorized Bicycle Bike, replacement for Coleman CT200U Trail Mini Bike. 2、Important Parameter: The mounting hole size is 40mm/1.57in (center to center), the interface size is 18mm/0.71in, the exhaust port size is M10. 3、High Performance: The engine exhaust pipe can help you effectively reduce noise during driving, ensure smooth gas exhausting with high performance. 4、Durable Material: The exhaust outlet pipe is made of high strength iron material, which has a glossy surface, wear resistant, impact proof and durable. 5、Easy Installation: Easy to install, no modification, cutting, or drilling required. It adopts original standard, which is a perfect replacement and can perfectly match. Specification Item Type: Exhaust Muffler Pipe Material: Iron Mounting Hole Size: Approx. 40mm/1.57in (center to center) Interface Size: Approx. 18mm/0.71in Exhaust Port Size: M10 Fitment: Fits for 49-80cc 2 stroke Motorized Bicycle Bike Replacement for Coleman CT200U Trail Mini Bike Replacement for Baja MB165 mini bike Replacement for Baja MB200 mini bike Package List 1 x Exhaust Muffler Pipe 1 x Gasket