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 world12-speed front derailleur with Di2 technology for fast and precise shifting performanceWider tyre clearance with plus 2.5 mm chainline versus conventional road front derailleurBraze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available (SM-AD91)12-speed E-tube Di2 compatibleCompatible with 12-speed HG chainsWide range 17T capacity - 48T outer chainringFor use with double chainset
