Hi I'm Mrkeeper7 Here With A Short Tutorial :) Slide A And B To Change The Gear Ratio A Gear Ratio Is Basically The Driver Gear Over The Driven Gear. What Does That Mean? Well Your Driver Gear Is The Gear You Spin And The Driven Gear Is The Gear Spinning Off Of The Driver Gear. By Dividing The Amount Of Teeth On The Driver Gear By The Driven One You Get You Gear Ratio! How Does A Gear Ratio Work? Say The Ratio Is 1:2 It Basically Says (From The Driver Gear's Perspective) Every Time I Turn Once You Turn Twice. That's Why The Two Gears Have Varying Speeds.