Material: Metal Weight: 2710g Color: As Picture Quantity: 1 Kit Fitment: Designed for 250cc, 300cc, and 320cc 2-stroke water-cooled engines Performance: Engineered to operate under -speed and -load conditions This Motorcycle Main Shaft Countershaft Assembly is built for performance in demanding riding environments.Constructed from metal, the assembly offers strength and resistance to wear.machining accurate dimensions and consistent hardness, supporting efficient power transmission and extended service life.The design allows proper alignment with gears and related transmission components, helping reduce friction and energy loss for improved overall transmission function. The kit is designed as a direct replacement for the assembly, compatible with select 250cc, 300cc, and 320cc 2-stroke water-cooled engines.It includes all necessary components for installation, allowing for a straightforward upgrade without the need for modifications. Engineered to perform in extreme conditions, this assembly can withstand operating temperatures up to 105℃ due to low volatile material content, maintaining stability and functionality during prolonged use.The metal construction supports durability and resistance to mechanical fatigue, making it suitable for long rides and challenging terrain.This transmission component helps maintain consistent engine performance under stress. This is a replacement item from an aftermarket supplier.Brand names are cited solely to demonstrate device compatibility.