BOYESEN RAD BLOCK 87-04 KX500 Textile - Over 95% is ultra-light

- Over 95% is ultra-light

This isn't an upgrade

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BOYESEN RAD BLOCK 87-04 KX500 Textile - Over 95% is ultra-lightBoyesen Rad Valve RAD 13 RAD13 Now delivered with carbon fiber reeds for even greater performance gains Maintains flow velocity through the valve and redirects intake charge for more even distribution to the intake ports Sharper, quicker throttle response Added torque improves performance on hills, through corners and over technical jumps Increases horsepower in low , middle and especially the top end ranges One piece aluminum casting, no trimming or