Seller notes

NCY PERFORMANCE SECONDARY GEAR SET (15*38) CHANGE THE GEAR RATIO ON YOU MOTOR FOR MORE PERFORMANCE NCY GEARS SET 15*38 IS 7.6% UPGEAR FROM THE STOCK (13/40 TEETH) WHICH WILL PROVIDE HIGHER TOP END SPEED WITHOUT LOSING POWER ON ACCELERATION. COMPARE TO STOCK GY6 150cc + TRANSMISSION GEAR RATIO SET IS 13x40 THIS UPGEAR SET IS 15x38 = 2.53:1. GET THE MOST OUT OF YOUR BIG BORE KIT, WITH INCREASED TOP SPEED AND A MORE USABLE REV RANGE PERFORMANCE. FITS STANDARD GY6 54mm SPACING (A-BLOCK)GY6 57mm SPAC...

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