I used tie-down ratchets and that is a rope going around the seat post to keep it from falling over and centered. I used the tie-down points in the bed. Without the rope and ratchet straps it leaned to the side and a bump in the road could have damaged the bike.
I was able to load my Aventon A2 in the bed (with bed liner) and close the tailgate. Snug but works perfectly. I later added a roll-up bed cover, and everything still fits. I made a ramp with a 2 x 10, showing hanging out the back. I later added hinges to the ramp so it folds up inside the...