The Shimano Tiagra RS400 Rear Hub is an extremely durable and reliable 10 and 11 speed compatible rear hub for Road cyclists. Seals help to prevent water and dirt ingress for incredible performance in all weather conditions.
Like those at the top-of-the-range, RS400 Tiagra level Road hubs feature labyrinth and contact seals to prevent the ingress of corrosion-causing dirt and water
Internal grease sleeve increases durability and reduces service intervals
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