Handmade Ultegra Dura-Ace Di2 Remote Sprint Shifter Sprint Switch 6870

Model Number : Handmade 001 Origin : Mainland China type : Sprint shifter Notice:this is handmade Sprint Shifter,not original make sure you #39;re professional and know how to set this with computer software 1,one cable includes two buttons,you can install it on the upper or low part of your handlebar. 2,very small,will not influence the feeling of your handlebar tape. 3, Waterproof and Dustproof 4,use it instantly. insert it on the lower port of the shifter. For TT =Time trial Bike amp;Triathon bike. 5,Read this carefully!The following precise models are supported,not support other models!! 11spd:support 6870/9070/8050/9150/,not support other models! 12spd:support 9250/8150/9270/8170,not support other models!