KV ratings tend to refer (although not exclusively) to "sensorless" brushless motor the higher the KV the higher rpm per volt applied
1/10th off road primarily use "sensored" motors with an extra "sensor"lead
lead
thes motors are measured in winds
low winds have more rpm and higher current consumption ie 4.5,5.5
higher winds less rpm lower current consumption ie 13.5 17.5
2wd buggies generally run around 7.5/8.5 turn
4wd buggies generally run around 6.5/7.5 turn
hope this helps
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