Is this to much ?.
 

Is this to much of a gear for a 1515-1y on 4s ?.





Differential Ratio: 3.3076923076923075
Transmission Ratio: 1
Other Ratio: 1
Spur Tooth Count: 62
Pinion Tooth Count: 15
Total Voltage: 14.8
Motor KV: 2200
Tire Diameter (inches): 5.6
Tire Ballooning (inches): 0
Motor Current Draw: 50
Motor coil Ω: 0.006
Spur/Pinion Ratio: 4.13 : 1
Total Ratio: 13.67179 : 1
Tire Circumference (inches): 17.59 inches (446.86mm)
Total Motor Speed: 31900 RPM
Vehicle Speed: 38.87 MPH (62.44km/h)
Effective Speed Rate: 2.63mph/V (4.22kmh/V)
Effective KV Value: 2155.41
Motor Torque: 0.16 ft-lbs
Final Torque: 2.19 ft-lbs

Looks fine to me. The big neu should be able to handle gearing like that.

I got a 1515/2.5d thats geared 20/51 on 5s with single speed Emaxx gearbox and it runs fine

So 52/17 should be ok w/ a 1515/1y on 4s also?