Pro Series reeds use a carbon fiber top reed coupled with a durable fiberglass/epoxy bottom reed Offers a quick and accurate reaction to piston speed for smooth dependable throttle response Increases performance without sacrificing the life of the reeds This product can be used with Honda ATC250R 81-86 Honda TRX250 4 Trax 86-89 Honda FL350 All Honda Odyssey All Honda Pilot 1989 Polaris P250 All Polaris P300 All Polaris P350 All Polaris P400 All