The Ski-Doo snowmobile seat is perfect for added comfort. It has ergonomically correct positions for the driver and the passenger and allows quick changes between 1-up and 2-up riding. The LinQ 1 + 1 seat system is easy and quick to install in two steps. No tools needed! Simply clip in the seat and add the backrest. Needless to say, it is the ultimate in modular seating. The ultimate in modular seating. Allows quick changes between 1-up and 2-up riding. Ergonomically correct positions for driver and passenger. Two easy tool-less steps: 1- Clip in seat. 2- Add LinQ 1 + 1 Backrest. Battery cover with support (860201407) required for vehicle without battery. - REV Gen5, Neo, REV Gen4 16"