Light Weight RDR Chrome Silicon Steel Alloy Valve Springs for 50cc, 125cc, and 150cc GY6 and GY6B 4-stroke engines. Rated for 12,000 RPM. The lighter your valve train components, the quicker the engine will rev.
Light Weight RDR Chrome Silicon Steel Alloy Valve Springs for 50cc, 125cc, and 150cc GY6 and GY6B 4-stroke engines. Rated for 12,000 RPM. The lighter your valve train components, the quicker the engine will rev.