New 4 pole motor?

Originally Posted by suicideneil

The 1406 motors measure 36x49mm vs 36x47mm for this motor, so my guess is also that its a cheaper variant made to Duratrax specs, like the HPI Flux 2350kv motor which is a 1517 with cheaper magnets- not a bad little system for $100..

2mm is nothing, and if look at them you notice the duratrax version have screw on the body for holding the front bell and in the original castle version the screws are countersink in the front, making it longer.