i am trying to figure out what toprack will work with a Givi V42 top box and the stock BMW side racks/cases. i spoke to twisted throttle and they say the SW-Motech toprack will not work with the stock BMW sideracks/cases. they say i need to replace the sideracks and replace the stock BMW sidecases in order to get a Givi topbox installed on my bike. can anyone tell me the easiest way to add a Givi topbox to my '07 R1200R.