1Applicable Model: The pair of clutch is fit for Pocket Bike Dirt Bike 2 stroke standard engines up to 49 cc, please confirm whether your model is applicable before buying. 2High Durability: The clutch adopts high strength material and fine manufacturing process, with high wear resistance and fatigue resistance, and long service life. 3Improved Handling Performance: The clutch ensures smooth engine to transmission shift, allowing riders better control during starts, stops, and avoiding flameout. 4Enhanced Power Output: The clutch enables more precise and efficient power transfer between the engine and transmission, improving the motorcycle's acceleration performance and climbing ability. 5Direct Replacement: This pair of clutches can be directly used to replace the old damaged one, so that your motorcycle back to the previous best performance.