The Draw Tite hitch part # 24935 is a confirmed fit for your 2013 Scion FR-S and would be all you'd need to install a hitch mounted bike rack like the Hollywood Racks Trail Rider # HR200Z. This would cost you about 1 shop hour if you took it to a shop so you'd just have to inquire around at shop hour rates to get idea what install would cost. view full answer...
Clearance refers to the overall width or diameter of a tire chain. This measurement is important because certain vehicles have restrictions regarding the amount of available space between each wheel well and tire. There may be a limited amount of room between your wheel and various braking or suspension components on your vehicle, thus prohibiting large chains from being used on your particular vehicle.
The Thule Standard Snow Tire Chains CB-12, # TH01221090, which you reference, require... view full answer...
For your 2013 Scion FR-S I would recommend the Draw Tite part # 24935 over the Curt hitch # C11379 as only the hitch opening hangs below the rear bumper which gives you a more hidden look while also helping with ground clearance. view full answer...