Touratech claims their crash bars connect to the frame and others use the engine. Most likely the BMW crash bars.
The biggest thing is going to be the Zega Pro cases.
2013 BMW F800GS, Cordoba Blue, ASC, ESA, ABS
2012 BMW G650GS - 13,000 miles ***SOLD***
"If you're not mixing gas, you're not hauling ass!"
"A clean GS is a dirty shame."