I'll check on the gearing but I think it's a pretty standard 12.90 ratio. Some people gear it really low so the car is a pig out of the hole and flies up top. Once you got it dialed, it's set it and forget it. Makes the other kid actually have to drive his car cause they'll get out of it in fear of breaking out. Then you just cruise by for the light. I'm thinking about doing that instead of the ballast. The bonus is I don't have to move around a car that's another 25# heavier!