The sellers store is Spectrumsandsports. He advertises them as mount 14" rims. Have the biggest tires on the block. Called him and he said he's sold 100s of these with no problems. And the thing that really pizzes me of is I can't leave neutral or negative feedback for him for 7 days. BS I tell you.
http://stores.ebay.com/Spectrum-Sandsports-and-RZRtech