Normal moabs, Not the xls.That ia a stock E Maxx rim/tire. Same size as a tallon. This rim may be the closest. Proline seems to have discontinued the velocity 40 series and wabash rims.
http://www3.towerhobbies.com/cgi-bin...?&I=LXPEB8&P=7 Specs say 40 series tires fit, and they are 17mm hex, with 14mm adapters. I kind of like them myself, but dyed black.