A reliable rear hub for road cyclists Like those at the top-of-the-range, RS400 Tiagra level road hubs feature labyrinth & contact seals to prevent the ingress of corrosion-causing dirt & water; this, along with the internal grease sleeve both increase durability & reduce service intervals The hub uses angular contact bearings designed to cradle the balls giving both radial & lateral support for superior strength & durability in real world riding conditions; they also offer precision bearing adjustment & easy maintenance 10, 11-speed compatible Silver anodised aluminium hub shell Available in 32 or 36 hole drilling Comes complete with Q/R skewer & steel Freehub body