The COBRA 5 is packed with a potent combination of hardware and software advancements, making it an indispensable ally in high-performance power systems. Pairing the Cobra 5 with the Castle 4-POLE 12-SLOT SENSORED 1721-1260KV is a great combo for 1/6th and 1/7th scale vehicles weighing up to 25lbs. and up to 8s LiPo. It is a great upgrade option for the Traxxas® X-Maxx™, Traxxas® XRT™ and Redcat Vigilante™ and you will experience controllable low-end ranges without sacrificing power, punch or speed.