The two stage rev-limiter is designed to provide accurate launching RPM's so that the rider can concentrate on the start and not on RPM's. The limiter uses a unique control function which makes an instant decision at the time of firing. A 2x 16 position switch that is used to set launching RPM's (2500-6250) with an interval of 125 RPM. The high RPM limits (5500-9250) are selected by a separate knob with an interval of 250 RPM. Holds launch limit at +/- 50 RPM for precise engine RPM limiting. Works with electronic Single and Dual Fire ignitions.