How to use brake?

V-brakes (sometimes called linear- or direct-pull) mount similarly, but the arms extend straight up, and the outer housing is attached to one arm and the inner housing to the other, similar to the cable attachment for sidepull brakes. They are generally more powerful and easier to adjust than cantilever brakes, and have the additional advantage of functioning well with the suspension systems found on many mountain bikes because they are self contained and do not require a separate cable stop. However due to their higher mechanical advantage, the brake pads must be positioned very close to the rim. Also see V-brake adjustment.