With our OSPW RS for Shimano road groups, we are bringing the OSPW into the future with a distinctly modern and angular design. The updated design adds balance and sophistication to the OSPW system, allowing it to seamlessly integrate into contemporary bicycle and group design trends. With an additional degree of customization (various logos and wheel options) combined with new innovative technical features, the OSPW RS meets consumer demands for personal expression and a top-tier riding experience. The OSPW RS is a statement of where we have been and where we are going - always at the forefront. The new design of the OSPW RS is not just an aesthetic update. The cage itself has been reinforced to provide a new level of strength and durability. Details: - Discipline: Road and Tri - Derailleur Brand: Shimano - Derailleur Model: Dura Ace RD-9250 and Ultegra RD-8150.