Before purchasing my trailer I heard many stories about the difficulties of finding wheels/Tires for Rondar. Then, Recently found myself in the position of needing them for a 2012 trailer.
After lots and lots of research I found these wheels on where else: Amazon:https://www.amazon.com/AB-Tools-Trailer-Radial-TRSP01/dp/B01M332V8G/ref=cm_cr_srp_d_product_top?ie=UTF8
Sure enough I received them 3 days later and fit my trailer. Time to hit the road.
**Full disclosure**
The seller originally shipped me Wheels that were not 100mm PCD, but rather 100mm Center bore. They admitted it was their mistake, and subsequently shipped me the correct set. They didn't bother to return the old ones overseas due to the cost of shipping. As such I got a 2 for 1 deal on tires, with one set of wheels that fit, and other that don't.
I'm doubtful that the next purchaser will be as fortunate.
Eddie--
This link worked great for me: I ordered a spare tire and it indeed was as advertised and fit perfect...