Wunderlich - Cardan Protection for BMW R 1300 GSWunderlich Cardan protection Function and Product Features Appealingly crafted, sturdy, complete protection for the lower, exposed part of the lightweight aluminum cardan housing of the rear wheel drive, the rear cardan joint, and the immediate periphery The cover protects both on and off road against potential mechanical damage in the covered area from rock impacts from below or in case the bike should hit the ground or encounter obstacles off road