Rims can be swapped by despoking the wheel and rebuilding it with new rims. I suspect however that you were actually asking if newer WHEELS could be installed in your frame. To answer that question, we'd need to know what year your current frame is. If you tried to install 8-9-10 speed wheels and they wouldn't fit, then you are probably out of luck.Bones1 said:Cannondale question? Is it possible to put newer rims on a R300 given the fact I can't spread the rear stay. And any idea which make would work looking for a more of an upgrade.