I've got an R56 on order. I have an R50 with the roof transportation system.

Before I go and get the R56 rack i was wondering if the Mini upright bike carrier, snowboard, and Ski attachments from the R50 system will fit. Will they fit on any of the aftermarket systems (like Thule)?

 

the attachments from your R50 factory carrier will fit both the R56 rack, and the Thule Aero bars

 

Does Thule make aero bars that connect to the R56 ports on the new roof? I couldn't find any, so I ended up going with the factory bars and for now, the factory ski kit...

 

When I was looking, they did not make any set-ups using the built-in roof rack spots. They do have a regular set of load bars that work just fine, though.