[lincpimp]

Now if you step up to a 9xl, you can gear lower, like an 11t pinion. This will give much better performance, as the motor rpm is higher, right at 35k max, and the mechanical load is less due to the lower gearing. Plus you will pick up 5mph or so.

Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 46
Pinion Tooth Count: 11
Total Voltage: 18.5
Motor KV: 1853
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.0092
Spur/Pinion Ratio: 4.18 : 1
Total Ratio: 13.83217 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 34280.5 RPM
Vehicle Speed: 42.39 mph (68.1 km/h)
Effective Speed Rate: 2.29 mph/V (3.68 kmh/V)
Estimated Adjusted Speed: 40 mph (64 km/h) - 6% loss
Effective KV Value: 1853