I also ran mine for the first time on the track last night. It was also making the gear noise. I didnt quite know what it was. Is this something to be concerned about? My 1.0 didnt make this noise. The thing ran great though ,shock ends stayed in tact right out of the box, but I will swap them out before I race. Definately turned better than the 1.0, but will take a little getting used to.