729531 500 12 7MM Thread Length 1 75 45MM Over All Length Suggeste

Designed by Kibblewhite Precision Machining Inc., these compression release valves are essential for managing the high cranking pressures of performance-tuned Harley-Davidson powerplants. These M10x1 threaded valves facilitate easier starting by reducing the torque required from the starter motor, thereby extending the life of electrical components. The design incorporates custom molded knobs for heat resistance and tactile operation during manual engagement. Each valve provides 5-7 Newtons of closing force to ensure a tight seal during combustion. Identified by the embossed KPMI branding, these valves offer a technical solution for riders facing difficult starting conditions. This kit is sold as a set of two for comprehensive engine coverage.