𝐑𝐄𝐀𝐃𝐘 𝐒𝐓𝐎𝐂𝐊 【 UPGRADE Kits contains 】 - ● Ultegra Di2 ST-R8070 STI Shifter PAIR ● Ultegra BR-R8070 hydraulic Flat Mount caliper PAIR ● Ultegra RD-R8050 Di2 11-speed Rear derailleur SS cage ● Ultegra FD-R8050 Di2 11-speed Front derailleur braze on ● RS910 Built in type BAR END Junction Box ) ● SM-JC41 Bottom bracket Junction ● BT-DN110 Di2 internal mount battery ● Internal battery charger ● E-tube Di2 electric wire x 6 ( Optional Add-Ons ) 140MM OR 160MM - - PAIR ROTOR RT900 IS DURA ACE - PAIR ROTOR RT800 IS ULTEGRA 【This set comes with the following accessories shown in picture】- - L02A resin pad w/ fin (2 pairs) - Fixing bolts - The fixing bolt came with the rear caliper is for mount thickness 25mm (bolt length: 38mm) 【SPEC 】 Brake Hose (Kit): SM-BH90-JK-SSR Lever Material: Aluminum E-Tube Port: 2 pcs Average Weight: 360g/pair The front caliper is for use with the flat mount fork The rear caliper is for use with 140 mm disc rotor on flat mount frame