Convert your B&M Pro Ratchet to a hands-free automated shifter for accurate and consistent shift points. The all electric operation means no Co2 bottle system or bottle maintenance required. Wires into any RPM activated switch, timer or push button and the solenoid operated shifter makes your 1-2 and 2-3 shift. Simple circuit prevents accidental activation from park or neutral into gear. Includes solenoid, safety switch, relays, handle attachment and brackets. B&M Shifter Not Included.