I don't have my 2012 S60 anymore but I have these accessories. The tire is unused and the load carriers were only used a couple of times. The tire also comes with a zip-up cover that has carrying handles.

Tire is Continental 125x80 R17. The part number is 313187980. It was replaced by 32209112 at some point.
The load bars are 31454710 according to the current Volvo parts catalog. I don't know if the number has changed; the bars don't show a number. Includes a multi-language user manual and a key for locking/unlocking.

I'll take best offer. Buyer pays shipping or picks up.

 

Where are you located? I'm in IL and interested in the spare.

 

Willow Glen area of San Jose.