RTB1005M: Racetech milled aluminium bracket for side-mounting seats. Same shape as the RTB1003S but half the weight. 5mm thick 5083 alloy. Sold as a pair. Fits the following seat models:
- RT1000
- RT4000W
- RT4000WX
- RTSaker (with modification)
- RTRoad
- RTRoadW (discontinued)
- RT4000WLB
- RT4000WXLB
- RT1000LBHG