Extra rotor?

[RC-Monster Mike]

Your motor has the original style rotor, Brian. I have been swapping the old style rotors with the new style before shipping, but time was short(and it was for you, so I figured it was OK), so I simply added the new style rotor to the package. Not all the original style rotors fail, but Tekin was attentive enough to send me new rotors for the stock I had when they discovered a consistent rotor issue. These are mostly gone now. You can use the motoras is - if the rotor fails, simply install the new style rotor in its place (and if you are motivated, you can then affix the original rotor back to the shaft with some 609 loctite retaining compound and keep yourself a backup). :)