SHIN YO BOOSTER 2 mirror E-approved. Corners and edges are the hallmark of the SHIN YO BOOSTER. The matte black aluminum mirror has a convex glass and a second joint in the stem for additional adjustment options and the best view to the rear. The smaller mirror head distinguishes this model from its big brother SHIN YO BOOSTER. Dimensions head width: 130 mm Head height: 86 mm Stem length head to bend: 140 mm Stem length bend to center thread: 43 mm M10 right-hand thread Scope of delivery 1 pair of mirrors 301-145 Adapter with M10 left-hand thread for Yamaha