The OSPW RS ALPHA for Shimano 9250/8150 Argent Special Edition is a premium upgrade kit designed for cyclists seeking elite drivetrain efficiency and durability. Compatible with Shimano Dura-Ace 9250 and Ultegra 8150 derailleurs, this special-edition system features ALPHA Disc pulley wheels for enhanced wear resistance and quieter operation, combined with the patented ADR (Active Debris Remover) bearing protection technology. The Argent design pairs a sleek silver finish with premium materials and craftsmanship, making it as visually striking as it is high-performing.

This specifications are from the information the brand releases and only apply to stock bicycles, build ups´ specifications will vary according to the components the buyer chooses.