Originally Posted by nikos2002

I would update the esc to a55 --- more performance. Maybe software new in the works ...

Typically if you go down in freq you will gain a little punch, in on road terms, more up front speed but could fall off at end. If too low, the fall off is too much. If too high, your lap times will stay same the whole run and will find others touch quicker. All this considering you have the right rollout, motor, timing and battery -- that is all big factors in 17.5 1/12.