I got a set from Needswings about 2 1/2 years ago, AND NEVER HAD TUBES IN THEM they were fine ,, you should have BIAS in the front also, the ET street radial you can run your stock tires. I now have DR's on 16" rims.
these also use the stock type lug bolt (ball type) after market wheels lugs use tapered , these rims are 8.5 x 16 with a offset of 20. the tire u use should be 26" tall jim