I'm confused - Castle has no mention of the kits, they aren't show as packaged in the eBay ad, and they claim to work for both old 1717s and new XO-1 1717s - but Patrick has stated that the new motors have different rotors:
Quote:
Originally Posted by Pdelcast
We developed a whole new stator and rotor design for this car -- it uses a shorter and lighter rotor for faster spin-up, and is up to 4% more efficient than the original 1717.
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