While the Inno Tire Hold 2 # INH120 works great on your Subaru Outback, it unfortunately cannot mount onto your 2010 Holiday Rambler Arista Motorhome. This is because the Tire Hold 2 is not engineered to withstand the extra torque and force exerted on the rack when at the rear of the motorhome. Trying to attach a non-compatible rack on a longer vehicle is extremely unsafe and not recommended.
With that being said, a great solution is to use the Kuat Transfer V2 Bike Rack for 2 Bikes -... view full answer...