- CNC machined alloy 36 hole shell - Shell trimmed down to reduce weight and to look more like a cassette hub than a freecoaster - Proven freecoaster internals - Hollow Chromoly 14 mm axle with alloy hardware - Color-matched axle nuts - 9t driver, sealed bearings - Includes 3 slack washers for you to adjust the preferred amount of slack - Incl. both sided hub guards - 588 g