I show how to replace mechanical disc brakes with hydraulic disc brakes on a MTB bike. Hydraulic disc brakes are very easy to install. This conversion is a really easy upgrade. I show removing the mechanical disc brakes and the install of the hydraulic disc brakes. The brakes I used in the video are Shimano BR BL M355 hydraulic brake set (front and rear). The bike is a Cannondale Trail Five.
Source : RJ The Bike Guy