At present, whether it is road mountain models, the high-end level are rarely used to pull the disc brake line. Highway is limited by cost low -there are many thread to pull the brakes, but current development trend, according to the shimano flat model of the hydraulic brake price already can control within 150,can also provide the oil quality assurance 1 year in the new, reliability is assured,the stability of the shimano mineral oil is very good, If the strength is not very big, there are few problems of aging seals in two three years.

The problem of brake maintenance, pipeline pull brake hydraulic brake, have to be regularly maintained, wire pull brake use for a period of time also face the aging problem of brake line tube, affect brake rebound brake force conduction. Hydraulic brakes do the same, except instead of brake wires, they use brake fluid.

As for the upgrade problem mentioned, it is necessary to further consider the existing part models specifications, especially the installation specifications of the frame. Some of the frame only supports half of the outer brake line, which needs to be converted to use the oil pipe,many of the frame is still the square disc brake column fixed clamp used by traditional mountain bikes. There are many fixed specifications using small disc brake  in the older low-end roads, as well as the now popular flat brake specifications, different installation specifications are also difficult to convert each other.