I think I made a mistake ordering a 1717/1Y 1500kv motor

[BrianG]

Yeah, you got the air version. The air version has a 6mm shaft, vented endbells, 1500kv, and motor wires are extensions of the coils (and are stiff). The car version is 1580kv and looks much more like your 2200 motor, but bigger.

There were inventory/boxing issues with the air and car version at Castle. Contact them and chances are they'll do a swap with no problems...