Hoca Replacement Valve Set for GY6 4-Valve Head, Part #169-356

Hoca Replacement Valve Set for GY6 4-Valve Cylinder Heads. Intake Valve Diameter - 21.5mm, Exhaust Valve Diameter - 19mm. Intake Valve Diameter: 21.5mm. Exhaust Valve Diameter: 19mm. Intake Valve Overall Length: 83mm. Exhaust Valve Overall Length: 84mm. Stem Diameter: 5mm.