I had posted a question earlier about the possibility of a rear bag or trunk that would work on a 2012 Touring and everybody said it wouldn't fit due to the seat.

I don't know about the earlier ones but the seat comes off along with the passenger hand grips and Polaris makes a piece that goes in its place making the Touring a one-up ATV and gives you a rear rack.

Both of these ATVs are 2012 Tourings, a 550 and a 850.