i have fitted roadster rails to my r3 , 1hr including bleeding the brake. don't know about the conversion kit i just bought the complete set of a guy that had fitted forwards to his roadster. if you do it this way all that you need to do is carefully re-bend the brake pipe to take up the 61/2" difference. nothing is the same off the roadster, the master cyl.- resovoir-pedals-footrests and all the gear linkage and even the rails themselves are bent different, but they do use the same mounting points. so if you want the easy option make sure you get the whole shooting match when you do the deal. alot of people seem to think they moved the footpegs by 4". i have carefully measured and trust me its 61/2".