This brake cut-off sensor (pair) is used in an installation where the standard e-cutoff brake levers can not be fitted due to hydraulic brakes being fitted.
These require gluing and modification of your current lever and not all levers will work. If you are unsure send us a message with an image of your lever.
Please note, this is not as effective as using the genuine ebrake levers or the Tektro Hydraulic Brake sets with e-cutoff. This product will only work with systems designed to run 3pin cut off brakes.