Battery fitting question?

[MTBikerTim]

I got my motor and I have gearing issues. 52t spur 18t pinion and they won't mesh. This is a problem. I am going to see what I can do with my dremel to make it fit. It should be easy enough to get the 52/18 to mesh properly but anything smaller might be a problem. Top speed on brians calculator on that gear ratio is:

Differential Ratio: 2.88888888
Transmission Ratio: 1.640953716690042
Other Ratio: 1
Spur Tooth Count: 52
Pinion Tooth Count: 18
Total Voltage: 22.2
Motor KV: 1516
Tire Diameter (inches): 6
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0.0138
Spur/Pinion Ratio: 2.89 : 1
Total Ratio: 13.69487 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Total Motor Speed: 33655.2 RPM
Vehicle Speed: 43.87 mph (70.46 km/h)
Effective Speed Rate: 1.98 mph/V (3.17 kmh/V)
Estimated Adjusted Speed: 41 mph (66 km/h) - 6% loss

I hope it doesn't run hot on that.