Once again I have discovered something about my Stallion that I don't understand. I thought some of you with a lot more experience with them could help. Today as I was cleaning my Stallion I noticed a little green button about a half inch in diameter on the gear shifter handle. It is located just below the thumb button for shifting into park. It looks like it has an O/D on it. Keep in mind I have only had my trike for about three weeks. Is it an overdrive button? I would sure like to find out more about the button and I knew I someone knows the answer out there. I wonder if I will ever discover all of the little treasures on my trike!