COMPETITION DUAL VALVE SPRING SET from Yamaha Star Accessories & Apparel

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2006 Yamaha
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Very good, very reliable commuter or long ride bike
November 2, 2008

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Very Sweet,Thrilling Ride
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COMPETITION DUAL VALVE SPRING SET

PART #SPD-5PX09-14-00: Designed to accommodate cams up to 9.3mm lift and up to 5500 rpm. Increases seat pressure by 20% over stock.

PART #SPD-4WM09-14-02: Designed to accommodate cams up to 10.8mm lift and up to 5500 rpm. Increases seat pressure by 27% over stock. Includes new retainers to work with the increased cam lift.