Lowest Spur to use with Monster Combo

[Smashwings]

Hi, would like to know which is the lower Spur gear you can use with this motor (2200 KV, suppose similar in diameter to Neu 1515 1Y), because I also have a 20 tooth pinion from my 700HO, and I want 40mph (track race, 4S).
So I can use my 20 T pinion with a 54 T Spur ? Or the motor would collide with transmission?

Differential Ratio: 2.8461538461538463
Transmission Ratio: 1.8333333333333333
Other Ratio: 1
Spur Tooth Count: 54
Pinion Tooth Count: 20
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0.1
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 2.7 : 1
Total Ratio: 14.08846 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Total Motor Speed: 32560 RPM
Vehicle Speed: 41.25 mph (66.27 km/h)
Estimated Adjusted Speed: 39 mph (63 km/h) - 5% loss
Effective KV Value: 2200
KT constant: 0.61 oz-in/A


Or I should buy a 22T pinion with 56 Spur?

Differential Ratio: 2.8461538461538463
Transmission Ratio: 1.8333333333333333
Other Ratio: 1
Spur Tooth Count: 58
Pinion Tooth Count: 22
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.8
Tire Ballooning (inches): 0.1
Motor Current Draw: 0
Motor coil Ω: 0.006
Spur/Pinion Ratio: 2.64 : 1
Total Ratio: 13.75641 : 1
Tire Circumference (inches): 18.85 inches (478.78 mm)
Total Motor Speed: 32560 RPM
Vehicle Speed: 42.25 mph (67.87 km/h)
Estimated Adjusted Speed: 40 mph (64 km/h) - 6% loss
Effective KV Value: 2200
KT constant: 0.61 oz-in/A

[HoovHartid]

I am using the MMM with the Tekno neu 1515/1y wich should be about as close as you can get to the combo that will be in the BL E revo.

I made a chart awhile back that may help you out.
I listed the pinion and spur combos I had and if it fits w/o issue or not;


http://i87.photobucket.com/albums/k137/darrajsam/pinion.jpg

[Smashwings]

Great table! , as I can see 20/54 is possible in the low CG mount.
Thank you very much!