CG125 motorcycle connecting rod assembly 103.5mm centre distance 40Cr forged steel connecting rod piston pin bearing kit

CG125 motorcycle connecting rod, moulded 1:1 according to the original CG125 factory specifications, with a centre distance of 103.5mm, small end bore of 18mm, and big end bore of 45mm, perfectly matching the crankshaft and piston, directly replacing the old part without modifications, suitable for the 125cc single-cylinder pushrod engine; made from 40Cr alloy forged steel in a single piece, subjected to quenching and tempering heat treatment, tensile strength ≥980MPa, hardness HRC35-40, impact resistant and fatigue durable, capable of withstanding the reciprocating impact of high-speed engine operation; needle bearing made from GCr15 bearing steel, surface phosphated for excellent wear resistance; connecting rod surface treated with black anti-rust coating, salt spray test ≥72 hours, suitable for high-temperature and oil-contaminated environments; includes the connecting rod body, piston pin, needle bearing, and circlip, complete set with no need to purchase additional components, ready for assembly, significantly reducing maintenance time; connecting rod assembly dynamically balanced with imbalance ≤5mg, reducing engine vibration during operation, improving riding smoothness, and preventing cylinder wear caused by imbalance