There are at least two different designs of MMC luggage rack, maybe a photo of what you have would help. Does it come complete with the roll hoop mounting brackets and bolts? These require the roll hoops to be drilled but there are alternative ways using clamp on mountings that do not require you to dill the hoops. Mark H has a good clamp mount for his rack and there is some information here: http://www.talkmorgan.com/ubbthreads.php/topics/363116/4