Please email instead of pm email@example.com MRE air shifter on the bike less than 6 months & used twice at the track & a couple times on the street. It has a dynatek co2 adaptor & 2 co2 bottles. I made a plug and play harness for the ignition kill so you dont have to cut into the factory wiring. It can also be used with a mini air compressor ( not included) instead of co2. It comes with shifter but you will need to weld a small bracket on frame to hold the shift solenoid. I have well over $ 400 bucks tied up in this system. $ 150 plus shipping & paypal fees.