a hobby wing 60 A paired with a leopard 17.5 sensored motor.Or the new Justock 17.5 combo

http://www.nitrorcx.com/07e-c-xerun-60a-sd.html

http://www.nitrorcx.com/77p-lbwr3650-17-5t-2250kv.html

http://www.nitrorcx.com/07e-combo-js5.html

the justock would be mychoice if all I raced was blinky 17.5, but i do race places where they allow speedo timing still so i run the 60 a speedo since it has timing adjust in the speedo.Right now i am running an orion 17.5 that has abut 3 seasons of dirt racing on it with the 60 a and its just as competitive as anything else out there on the track.

I would recommend the budget 60a 17.5 system(yellow speedo) i posted a couple pages back but I dont have the one i ordered in my hands yet.. so as soon as i confirm what it is and how it performs I will post and let folks know