AMA Pro Road Racing Technical Bulletin #2010-01 To: All AMA Pro Road Racing Competitors Date: March 10, 2010 Effective Date: Immediately Subject: American SuperBike Radio Communication Audio communication from crew chief to rider is no longer mandatory. It is recommended, but optional. 2.10 Radio Communications a. AMA Pro Racing Race Control communicates schedule, track, rider and machine status information on frequency 461.4750203.5 throughout each race event. All teams must have at least one crew member monitor this “listen only” communications channel during all practice, qualifying and races. b. Electronic audio communication and/or clearly audible signals from the crew chief to the rider is mandatory in American SuperBike.