Been looking for a used set of Jesse bags for my GS mostly because I'd had them on an oilhead and got use to them. They're hard to come by for the old airheads. There'd only been couple of references to mounting Mosko bags in this forum. What's really appealing was using the standard BMW racks. No modification was necessary. There is one caveat, the locking hole in the latch won't clear the full bench seat on the right hand side. Solo seat setup is no issue. I'm going to call Mosko and get an extra set of latches which bolt to the bags using standard allen bolts and modify them to use when riding with a pillion. These are the off-set bags 25 and 35 litter. Here's what they look like mounted. Must say they seem very strong and durable. Probably more bag than I'll ever require but for those looking for a "plug and play" solution while retaining the option of using the OEM bags this is a good bet.