Sorry, my spare is on my bike with a reasonable new tire, awaiting a rear wheel/tire change to a car tire. I don't know when I'll be able to swap it out.
Knowing you, you're looking for a quick replacement so you can get out their and ride again?
I would hate to offer my mounted powder coated wheel and Austin TT.

Hmm, just looking at the picture, it might be a J1L rim. I need to compare my 2 wheels, I think my GW rear rotor is an old style and I'm good.