The MotoSport.com Turner Performance Products Titan Complete Rear Wheel Combo includes ONE each of the following: Turner Performance Products Titan Rear Wheel: A premium materials list puts these wheels above the competition. The hubs are manufactured from billet 6061 aluminum, the rims made from 7075 aluminum and the bearings are top-of-the-line SKF sourced. Spokes are produced using high-specification Swedish stainless steel* and are held in the wheel with high-strength brass nipples. Turner takes no chances, and this list of high quality materials demonstrates that no shortcut has been taken in producing these hoops. The Swedish stainless steel, branded SKF bearings and top-notch aluminum for hubs and rims shows that these are not just another aftermarket wheel. Hub is precision built from extruded billet 6061 aluminum and T6 heat treated.