PRO BLEEDER'S FOR JAPANESE BIKES M5x0.8 threaded. * Most new motocross bikes come equipped with a bleeder screw in the fork cap. However, unscrewing the bleeder screw is a hassle and if you loose it, you are out of luck. * The Pro Bleeder requires the fork caps to already have existing bleeder screws in holes that are M5x0.8 threaded. * The Pro Bleeder installs quickly in the existing bleeder hole without modification and allows the rider to bleed excess air from the forks anytime without hassle. * Pro Bleeder installed height is 7/8 or 22mm.