Quote:
Originally Posted by SerpentEagle
Well your saying with 4" wheels.. Since speed and amount of stall torque used are a linear relationship then the speed should become half when the wheel size is doubled: 18 ft/sec divided by 2 = 9 ft/sec
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You double your wheel size, you will double your speed. You will halve your available force on the ground for a given motor torque. Your acceleration will be slower (1/2 in your friction less physics lab.) Wheel size changes the total reduction, but you can compensate by changing the gear ratios to match.