Shimano 105 5800 Road Hub
Durable and smooth front 105 hub. Radial lacing compatible. Cubic Boron Nitride treated cone races provide a mirror-smooth bearing surface for a low friction, corrosion-free performance. Labyrinth and low-friction contact sealing effectively shuts out water and dirt without affecting rotational smoothness. Internal O-rings help maintain and increase service life of front hub by holding the grease in the bearing housing.