Getting ready to do a build on a 75 CB550F and the original rims are pitted beyond cleaning. I can get a set of CB750A alloy spoked rims really reasonable. I know they are 40 spoke, but does anyone see a problem with this. I can lace them if the hubs are different and would want to pull them apart for a thorough cleaning anyway. I really can't see a problem, but was just wondering if anyone else has experience with this? Thanks