Thanks. I wondered about the gears because I am a little guy (130lbs), and I feel like it has the power to go faster, but is geared too low. I accelerate very quickly, but again, feel like I run outa rpm's. I may look into the gearing- could be fun. I haven't cracked open the cases yet, so is the hub of the gears the problem? Are the hubs splined (#of splines?)?.