The SHAD Top Master fitting allows mounting a top case onto the motorcycle. It is a fitting specifically designed r=for each motorcycle model, taking into account its features. The result is a high-quality product, comfortable, safe, and easy to assemble and disassemble. To mount the top case onto the bike it is necessary to add to this top fitting, the plate included in the SHAD cases (except for TR48/TR37). Compatible with medium (D1B40PA) and big (LSA-D1B591PA) mounting plates , valid for TR48/TR37/SH59X/SH58X/SH50/SH48/SH47/SH46/SH45/SH40/SH39. To use with SH37/SH34/SH33/SH29/SH26 is necessary to use medium mounting plate. ATTENTION: top fitting is not compatible with an aluminium mounting plate.