That's funny.
Half the stock Pistas I see riding around have platform pedals and the chain tension of a rope bridge.
I was at a street fair last weekend and stopped one such rider.
Hey nice bike is that a Pista? (decals were removed, stock seat gave it away)
Uh, yea.
Cool, what kind of hubs are those?
Uh, I dont know they came with the bike.
What gear are you running?
Uh, I don't know.
I see, listen I notice you removed the brake.
Uh, yea it's a fixed gear so I don't need one.
Yea, I noticed that too. I also noticed you chain is really loose, that's not too safe you should snug that up when you get a chance.
Uh, OK....rides off into traffic.

Enjoy