Supercross BMX | OS20 SX450 Cro-mo BMX Race FrameWhen we built Randy Roberts his Bulldozer OS20 RS7, one of the first calls we got was from Turnell Henry, he wanted one, but he wanted it in Cro mo like his SX450 he has been racing. You know his Fun Machine so the Bulldozer Fun on top of the Bubba Fun well this is going to be the new SX450 FAS FAS ( Fun as Fun as ) so fun you have to say it twice. Unlike all the other companys that are building Modern Retro bikes, or tribute bikes, the SX450 Fas Fas