This minimalist front hub design is time tested and built to last. Bill Shook dialed in the strength to weight ratio producing a sleek, durable design at only 58 grams. The one piece forged hub shell has widely spaced bearings placed close to the point of loading at the fork ends. The hub flanges are a beefy 3.5 mm thick, engineered to conquer the stresses of radial lacing. When built into a wheel, the minimal, aerodynamic profile reduces wind resistance. Now with screw-in end caps. The Micro 58 is the perfect start to a high end front wheel.