I know very little about Hutch Aerospeed cranks, but if there is anyone out there, that can tell me if this is an aerospeed disk, I'd appreciate it very much.

i saw one on eBAY A FEW MONTHS AGO, HE WANTED $250 oops caps lock.

Wow, did it sell?

Unfortunately, that isn't an Aerospeed disk. I've had a few of them in the last few years. Aerospeed disks have dual bolting patterns and the whole thing appears "turned" as in - on a lathe during the machining process.

It also has a distinct front and back with the back having a small raised ridge and the front a larger raised ridge.

The last one I sold on Ebay went for over $300 in the fall of last year.

thats an inner haro disc circa 86.....

Brian is correct, Haro Power Disc!

and jay, if you want to get rid of it and the arms, hit me in a PM

That "turned" look was exactly what I was expecting from aerospeeds. It came on my new haro, so that explains that. As to whether I plan to get rid of it, I'll probably have to decide which way I want to go, because I do have a couple of options on the whole stock haro chain ring. I'll keep you posted though. Thanks for the help.