Aviator MX Series at Milestone Mx Park September 19th October 24th November 7th Registration. 4:00-5:00 pm Practice. 5:00-6:00pm Race 6:30pm $35 for Two Classes! 1st: $30 2nd: $5 (Transponder fee included Contact: Ken@DirtAlliance.com Classes 1. Pitbike 10″ /12″ youth 13 under 2. Pitbike 10″ /12″ 14 and over 3. Pitbike 12″ stock/mod 4. *50cc Mod 4-8 ( [...]