1999-2003 Honda Sportrax 400EX TRX400EX Race-Driven Severe Duty Rear Brake Pads Race-Driven Rear Severe Duty Sintered Metal Brake Pads. Race-Driven exclusive sintered metal compound is designed to withstand extreme conditions Excellent performance in mud, water, sand, racing and any other condition you can throw at them 1999 - 2000 Honda Sportrax 400 TRX400EX 2x4