There isnt really a standard chart, you just need to find out the best ratio for your motor, according to your other thread you run a B4, so thats a 2.6:1 internal ratio, with a kit 81t spur gear, 18t pinion and standard buggy tires at 81mm dia. that would give you and overall ratio of 11.70/rollout of 21.75mm (how far car travels to one revolution of the motor) find out on the novak site or something what the ideal ratio for that motor is and work from there, its fairly easy once you get your head around the basics

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