This top case with an internal volume of 37 litres is using the practical press-lock-system . Necessary brackets for mounting on 950 Supermoto 625.12.027.150 for 990 Supermoto 626.12.027.050. On 990 SM-T you don't need any further brackets, Topcase can be mounted direct on the stock carrier plate. For use on 990 SM-T please use the included M6x40 screws. Please find more informations in the downloadable manual! Size: 49cmx40cmx31cm