Originally Posted by
cyclone speed
so does it mean i sould stay with my 16 tooth pulley .
I have a 5.5 brushless
So long as you can hit your final drive ratio it doesn't really matter which pulley you run. The 18T just helps get the lower FDR needed for 17.5 and 13.5 motors. The 18T pulley on paper should also be a little more efficient due to less belt wrap. With the killer lipo's and brushless motors that we have we won't really be able to tell the difference.