My option was a "hand made" crash bar. The work was did for a friend (rider to) and I think the result was very satisfactory. When I decided to make my own crash bar was because in that moment (October 2010) I had not many options because was a new model or some models was very expensive or difficult to buy here in Argentina, then option was check some models, think a bit and go to do
If you have a friend who works welding you can decide for a to buy a industrialized crash bars or make your "own" crash bar.
My crash bar have enough space to take off both lateral plastic covers. The trouble " motorcycle is fat as her owner"
but is not a big problem. Protect up side and down side and is useful to put on extra lamps too
When I designed the crash bars I think to don´t put nothing in front air entry to the radiator to don´t chang air flow and the other side to don´t interrupt flow to the electric dissipate at the right side. Now I´m thinking to put another point of support to the plate in the midle (the plate who has 4 bolts) over the pipes exhausts
Here you have some pictures https://plus.google.com/photos/118082462844417583081/albums/5713543641344473185?banner=pwa