Feature:1. STRONG SEALING: Bicycle hubs are sealed to effectively isolate water, mud and dirt, and to achieve a smoothly and fast riding experience.2. INBUILT BEARING: Bike hubs 32 hole built in bearing, smoothly more effort, using the first two after four bearing layout, riding more effort.3. 32 HOLES DESIGN: Mountain bike rear hub adopts 32 holes design, 6 pawls, CNC cutting process, high accuracy, low friction.4. ANODIZING PROCESS: Bicycle hubs use anodizing process to improve wear proof, electrical conductivity, reflectivity and aesthetic effect.5. ALUMINUM ALLOY: Mountain bike disc brake hub is made of aluminum alloy material, high strength, rustproof, no deformation, sturdy.Specification:Item Type: 32 Hole Mountain Bike HubMaterial: Aluminum AlloySize: Approx. 12 x 148mm / 0.47 x 5.8inColor: Red.Package List:1 x32 Hole Mountain Bike Hub