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Compression springs do a couple of things. First they supply the pressure to engage the belt. They also determine the rate at which the CVT transmission changes from low to high gear. A 1000rpm spring will go into a higher gear than a 2000rpm spring. This NCY 1000 rpm compression spring is specifically for the GY6 50.


Wire Diameter: 4.0mm Inner DIameter:49.0mm Length: 106.0mm

NCY Compression Spring (Performance); QMB139

Scooter Transmission

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Your Price:
$ 16.00

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