Shimano GRX, with its gravel specific ergonomics, optimized gearing options, rugged reliability, and quiet and stable drivetrain, sets itself apart from the rest of the component worldLow profile Shadow Plus design 12-speed rear derailleur with Di2 technology for fast and precise shifting performanceShadow Plus uses a chain stabilising switch that when on will reduce chain bounce in rough terrain maintaining more stable drive and shiftingHigh tolerance cold forged aluminium link plates and body construction is extremely light and durable12-speed E-tube Di2 compatibleCompatible with 12-speed HG Plus chainsWide gear ratio compatible up to 11-36T
