I have a pair of Cb750A wheels,76 I believe,I am told,correct me if I am wrong but the hub is the same as a K bike,At least the front is,I measured the width,diam,etc and compared it to my 73 K hub,they seem identical,cant they just swap onto my K?taking the front fender off of course.Also I checked hondas part #'s and it is 3865316-001 on both.The rear I am not so sure about.It would be nice,just to throw a new sprocket on it and go.