the gears in your axle are the same thing as in a mountion bike the low gears 1,2,3, and for low speed more power the higher gears 4,5,6 are for speed you work real hard in the high gears to get moving where low gears would be better butttt its hard to go fast in low gears you pedal like crazy and go like 2 mph
see what I'm getting at :dunno: