40 Spoke Spool Hub Front Wheel 21 X 2.15Add some style to you bike, with these custom chopper wheels. These spool wheels are not for the faint hearted. They have no provisions for brake rotor mounting and require custom wheel spacers for your application. Chrome plated hub, spokes, and rim. 3 4" ID sealed bearings Bearing dimensions are 52mm OD x 3 4 inch ID, x 21mm width. Sealed rim for tube less or tube type tires. Available in Chrome or Gloss Black