<ul><li>Pig DH-Pro feature angular contact sealed upper bearing and an industrial cartridge sealed bearing<li>Pig feature oversized 1/4" lower ball bearings, 5/32" upper bearings <li>Big Fat Pig feature super oversized caged ball bearings<li>model: Pig<li>steerer: 1-1/8"<li>headtube ID: 34.0mm<li>stack (top/bottom): 15.4/13.6mm<li>crown race: 30.0mm<li>color: silver</ul>