Shimano Sora FH-RS300

Like those at the top-of-the-range, Sora road hubs feature labyrinth and contact seals to prevent the ingress of corrosion-causing dirt and water; this, along with the internal grease sleeve both increase durability and reduce service intervals - 8- and 9-speed compatible.

The hub uses angular contact bearings designed to cradle the balls giving both radial and lateral support for superior strength and durability in real world riding conditions; they also offer precision bearing adjustment and easy maintenance.