Did you have trouble with some certain bag/mount before? I don`t think anybody makes them specifically for riser or drop bars. I have Cannondale mounts on my mountain bike (with riser bars), my wife`s "old lady" comfort bike (also with riser bars), and on our tandem (with drops). The same combination of big bag or little bag will fit on any of those bikes. I did have to get a little creative with cable routing for my wife`s bike to make it work. The Canondale system is the only comercial bag/mount setup I`ve ever used, but from looking at other manufacturers stuff on the web and in the stores, I`d venture to guess they all have pretty much the same issues and requirements. If in doubt, try a cheap one (or borrow one first) so you won`t be out much. Getting around the cables is the biggest potential problem, but you ought to be able to figure out a way by moving them around or tilting the bag.