The newer MT DR tread pattern is in 17-18" sizes. They should be out soon, (month or 2- this summer) I know some are getting tested right now. Thats gona be the best tracion 17-18 tire out.
New Era is setup as a tire wholesaler, We just got some 17 and 18 BFG Drs witch are currently the best tracion DRs in the larger 17"+ sizes, untill the MT are out.