Today on this 2011 Toyota Sienna we are going to show you the Yakima DoubleDown 5 bike hitch mounted carrier, part number Y02425. The DoubleDown 5 can be adapted to fit both 2 inch and 1-1/4 inch, class II hitches. On our Sienna we have a 2 inch class III hitch so we have our adapter installed. To mount the bike rack, we will fit it inside of our hitch and line up the hitch pin hole on our hitch… see more >