PRe 75 means just that, it dont have to be off your model bike. TM suzuki etc had alloy rims and they wherent muddies, pre 75 just not Anodised blue. nothing stopping you using a nice akront or sun rim from a wreckers even off a roady so long as it 36 hole your in business. IF your desperate just get an old Dt set OK they maybe steel but its rolling weight so who cars your inbusiness - at least your riding the thing and not looking at it in the shed, and then when you find some you can swap em over down the track. PS, get a spare rear set up as a spare anyway so a ready to go steely ready to drop in with tyree is worth taking to every race met, i can change a puncture to save my life, and i have a habit or messing with the spokes, usuualyy and stupidly just befor ethe next race....patingggg. Doh
Peeps only get anal on PRe 75 suspension and motors, the rest of its just stuff if you could buy it or its a close enought repro of somthing i could buy over the counter in xmas 74, you knock yourself out, otherwise we would still be chasing those stuppid waffle grips, just to be able to compete in the class.