This brake cut-off sensor (pair) is used in an installation where the standard e-cutoff brake levers are not required, or not practical (ie. integrated shifters).
For use on Cable operated brakes only. You can use your existing levers with this product, it senses when the cable moves. This product is only for BBS Bafang products.
Please note, this is not as effective as using the genuine ebrake levers or the Tektro Hydraulic Brake sets with e-cutoff.