So today I installed the Front Runner 3/4 Rack and a Kickass slim line lithium battery. I did not opt for dual battery because I wanted to do my own thing . I had to modify the seat slider handle and move a connector but the battery fit under the seat. At some point will be putting in the 40V DC charger for the battery but for now I thought people would like to see the battery. Had to raise the seat up a few clicks but this works for me. The shorter you are the better this would work. It also means I get to keep all the space under the front seat.