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GY6 Upgear kit. 7.4% upgear. 50 ton gear press required for install. Get the most out of your big bore kit, with increased top speed and a more usable rev range.

20mm W x 20mm I.D

NCY, GEAR SET (15*37); GY6 150CC $49.95

    Toll Free 1-877-701-0111 

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