Tandem rack question.
 

Anyone have factory cross bars on you vehicle? If so what tandem mount system are you using? Thanks.

I have had excellent results from the ATOC Topper rack. In the past, I had it mounted on the cross bars of my Sienna mini-van. I used to leave it mounted, but a valet at a hotel in New Orleans drove it under a low beam several years ago, breaking the front wheel mount on the rack and bending the cross bars. (The hotel paid for all the replacement and repair costs.)

I now pull a small Mallone frame trailer with the ATOC Topper mounted to it.

Whether the tandem mount is on the vehicle's cross bars or on the trailer, it is pretty easy to get the tandem secured onto the ATOC Topper.

We use an ATOC Tandem Topper rack... on the Subaru factory bars we use the Subaru accessory mounting clamps. We also mount it up to Yakima round crossbars using Yakima clamps.