The SHAD Top Master fitting allows mounting a top case onto the motorcycle. It is a fitting specifically designed por 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 this kit to the plate included in the SHAD case. NOTE: Fitting kit JUST compatible with big & medium rack, compatible with SH59X/SH58X/SH50/SH48/SH46/SH45/SH40 Cargo/SH39. To use with SH37/SH34/SH33/SH29/SH26 is necessary to use medium rack D1B40PAR.