Aero dynamic, comfort levers. Allows easy Di2 upgrade by adding switch port accessory. Specification Carbon Lever Blade Forged Lever Body Flexible Mounting ID(19-20.5mm) Di2 (SW-R9150) switch port cover Compatible (NOT INCLUDED) Tooled Reach Adjust 2 Piston caliper Flat Mount Semi-Metallic Brake Pad Standard fitting(Barb, CF-6001 compatible wtih Jagwire HFA309; Bushing CC777 = Jagwire HFA505; compression nut CM-2006-M compatible with Jagwire HFA403) Weight:279g (carbon lever) Includes Front Brake - 1000mm Hose - Flat Mount. Rear Brake - 1700mm Hose - Flat Mount. Please Note: The Shimano SW-9150 switch is required for you to use these brake lever. The switch is sold separately