Feature:1. Material: Adopting good quality aluminum alloy material, prevent rust and corrosion, fashionable and unique design.2. Performance: High strength bearing middle parts, wear resistant and durable, long service life, saving money.3. Fine Craftsmanship: Exquisite craftsmanship and strict production technology, fine to every corner and every place.4. Lightweight: Light in weight, small in size, easy to carry, will not increasing burden, can bring you more convenience.5. Replaceable: Replace old bearing parts to make your mountain bike perform better, make your ride more covenient.Specification:Item Type: Mountain Bike HubColor: BlackMaterial: Aluminum AlloyWeight: Approx. 216g/7.6ozProduct Specifications: 110mm/4.3in Front Fork, 20mm/0.8in Shaft, 36 HolesRolling Structure: Bearing / Bearing 2 Product Model: 6804 Bearing.Package List:1 x Bicycle HubNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.