Just for what?
6wd 8wd?
2wd by the looks of it 
Riveted tread?
Two sprockets suggests live-axled center wheels of a 6wd, or 4wd dead axle wheels chained to the gearbox sprocket, or an 8wd I suppose, these being two of the 4 centered wheels, chained out to the ends…
My bet is on 6wd^
IFI wheels don’t come with a live axle bore. That would be an accomplishment…!
I’m guessing their 2006 robot…
Those are generation1 IFI wheels, circa 2006. Retro!
Old-skool robotics revival?
I’m confused… Pretty sure this exact post was posted in 2006
It was, but a new thread is created when someone goes to comment on it.
Bit of trivia, these wheels won a regional.
You say this as if I’d know
(which I don’t since, you know, 2337 only buys AM mecanum wheels… [okay, we’ve bought some others, but I don’t think we’ve ever used IFI wheels, let alone from 2 years before our team existed])