they're not all russian, just on a Russian site...OverKill, the green one with the car tire in the rear, is from a guy in Canada ( http://www.atomiczombie.com )...
Those aren't all Russian bikes. I recognized several of them from other forums and the one 3rd from the end is Gottavan's (a member here) that I rode with last weekend near Detroit...Kelly
I recognize alot of those and very few are Russian.
The trike with the go kart rear axle and front disc brakes is cool as can be (except the Pepto Dismal color).
I bet alot of the parts that would be needed to build one get discarded because the're slightly bent and vibrate like heck at race speeds. I think I need to look into this, it might be able to be done pretty cheap.