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 world 10-speed front derailleur for fast and precise shifting performance Wider tyre clearance with plus 2.5 mm chainline versus conventional road front derailleur Braze-on fit as standard; if your bike does not have a braze-on mount seat tube adapters are available (SM-AD91) Compatible with 10-speed HG chains Wide range 16T capacity - 46T outer chainring For use with double chainset Weight: 96 g