This big R1200GSA has Rigid Duallys fitted on the crash bars...
(https://www.bikevis.com/images/gallery/bmw_r1200gsa_2/r1200gsa_1.jpg)
(https://www.bikevis.com/images/gallery/bmw_r1200gsa_2/r1200gsa_2.jpg)
(https://www.bikevis.com/images/gallery/bmw_r1200gsa_2/r1200gsa_3.jpg)