CG125 motorcycle crankshaft assembly 24.75mm eccentric distance connecting rod crankshaft

CG125 motorcycle crankshaft assembly 24.75mm, moulded 1:1 according to the CG125 original factory specifications, crankshaft eccentric distance 24.75mm, connecting rod centre distance 103.5mm, small hole size of connecting rod 18mm, spline pitch and shaft diameter perfectly match the engine block and clutch, directly replacing old parts without modifications; available in dual materials Cu-Cr-Mo cast iron / 40Cr forged steel, teeth treated with high-frequency quenching, hardness HRC48-58, impact-resistant, wear-resistant, life span three times that of a standard crankshaft; integrated CNC lathe processing, crankshaft dynamic balance error ≤0.004747mm, reduces vibration amplitude by 40% during operation, engine runs quieter, riding smoother; can withstand maximum principal stress 5.9431×10⁸Pa, maximum shear stress 4.3398×10⁸Pa, capable of handling high-intensity conditions such as climbing and heavy load, preventing shaft breakage or deformation; surface treated with blackening and anti-rust oil for dual protection, salt spray resistance ≥72 hours, suitable for high-temperature and oily engine compartments, long-term use resists rust and corrosion; each crankshaft undergoes triple quality inspection including dynamic balancing, stress testing, and hardness testing, 100% passed before storage to ensure stable operation after installation