CG125 motorcycle connecting rod assembly, 13MM pin diameter and CG125 crankshaft, piston completely match, directly replace the original connecting rod, no need to adjust the assembly structure of piston/crankshaft; Forged with high quality alloy steel, high strength, impact resistance, can withstand the impact of reciprocating piston movement, suitable for high load conditions of the engine; The connecting rod head is preinstalled with precision needle roller bushing, which reduces the friction loss with the crankshaft, improves the power transmission efficiency, and prolongs the service life of the connecting rod and crankshaft. It can be directly assembled between the crankshaft and the piston, and is the core replacement part of the power transmission system in the overhaul of the engine.