Pair of homologated BOOSTER model universal mirrors Black mirror with convex glass and second joint in the stem for further adjustment possibilities and the best view on the back. Dimensions head width: 155 mm head height: 89 mm shank length, head to bend: 140 mm shank length, bend in the center of the thread: 43mm Thread diameter: M8 Scope of delivery: 1 pair incl. an additional adapter with left-hand thread for Yamaha