CeramicSpeed OSPW RS Pulley Wheel System for Shimano 105 7150 - Aluminum Pulley, 5 Spoke, Carbon Cage, BlackCeramicSpeed's OSPW RS for Shimano Road 105 R7150 has been lifted with a distinctly modern and angular design. The updated design brings balance and refinement to the OSPW RS System allowing it to blend seamlessly into the contemporary design trends of bikes and groupsets making up the whole of which the OSPW System is part. Innovative tech features of the OSPW RS meets consumer demands for a premium ride experience. The design for the OSPW RS isn't