NCY Ball-Bearing Secondary Spring Seat | GY6 & QMK 125-170cc drum Specially formulated tread provides the

Specially formulated tread provides the best grip at high MPH with superior water displacement and silica-rubber compound elasticity to hold the road in cold

Lowers ride height up to 1

Compatibility: 125/150 GY6 engines (see NOTE above)

Bore Diameter: 57mm (57

Universal Fit: Works with scooters

NCY Ball-Bearing Secondary Spring Seat | GY6 & QMK 125-170cc drum Specially formulated tread provides theThe NCY ball bearing secondary spring seat eliminates CVT spring twist and binding on GY6 125 150 170cc engines. In a stock setup, the torque spring must twist as it compresses, creating internal friction that slows downshifts and reduces belt life. This NCY upgrade uses an integrated ball bearing assembly that allows the spring to rotate freely during compression and decompression, resulting in faster, more consistent CVT response. Zinc plated steel