Originally Posted by
Cridd
that was my next question, what is the difference with the same ratios but different size pinions and spurs. bigger spur smaller pinion is more torque, so bigger pinion smaller spur is less torque more horsepower, high speed?
correct
spur divided by pinion
smaller number=more top speed and heat/load on motor
bigger number=more torque and less heat/load on motor.
ex. 81/16=5.063, 81/14=5.786