SAME AS RAD-12E, BOYESEN RAD VALVE 99 KX250, BLOCK RAD-12D

• 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 aluminium casting, no trimming or plastic inserts required.

Compatible with Kawasaki:

• KX250 1999