http://www.ebay.com/itm/Yamaha-XS650-Street-Tracker-Rear-Wheel-Rim-No-Reserve-/290700836183?pt=Motorcycles_Parts_Accessories&hash=item43af1ebd57&vxp=mtr#ht_500wt_926
Brand new tire and sprocket; rim looks great.
Was told by orginal owner that this has an "RD400" hub, and a custom sprocket...