Hey Guys

Can Someone give me a short Gearing Lesson ?

For example my Nitro Slash has a 72T Spur Gear and a 20T Clutch Bell

If i use a smaller or bigger Clutch Bell what would happen ? would it get faster on top end or gain more torque on the low end.

Samething for the Spur Gear if i were to go smaller or bigger what would happen ?

Thanks