Upgrade your rear derailleur with this Shimano Ultegra, Deore XT and Saint tension‑and‑guide pulley set in sleek black. Designed for 9‑ or 10‑speed systems, the pair features precision ceramic bearings and a durable steel housing that delivers smooth shifting and reliable cable tension across all gears. The compact, lightweight construction fits easily into any bike frame while maintaining high performance during long rides.