Replacing brake pads on a bicycle
Both avid cyclists and novice amateurs have to deal with the need to replace brake pads on bicycle transport. And practice shows that the more you pedal, the more often you should change the brake pads.
How To Replace Rim Brake Pads | GCN Tech Basic Road Bike Maintenance
Bicycle disc brakes also have their advantages. They:
- less clogging when driving;
- can work without problems while driving on snow or mud;
- as smoothly as possible (in contrast to rims) adjust the braking force;
- do not react to slightly curved wheel geometry (small “eights” are not a hindrance for them);
- do not affect the wear of the rim;
- and do not require expensive maintenance.
Many bicycle disc brakes have only one moveable brake pad. The second is fixed statically relative to the frame structure. This greatly simplifies and reduces the cost of the caliper. But, however, as the wear and tear, the cyclist will have to tighten the brake pad, which is stationary.
Brake discs are standard sizes. These are 140, 160, 180, 185, 203 or 220 millimeters.
Replacing rim brake pads on a bicycle
Over time, rim pads (like any other bike part) fail. And any self-respecting bike enthusiast, not to mention professionals, should be able to replace them. over, this is easy to do with v-brakes. The main thing is to do everything slowly, clearly observing the technological stages in the required sequence:
- Open the brake. bring its levers together and remove the iron tip of the “shirt” from the groove formed (the cable comes out of it).
- Remove old pads, remembering in which sequence the fasteners were used.
- Install new pads, sequentially collecting all mounting shims and washers.
It’s even easier when it comes to cartridge pads! It is only necessary to replace the rubber gaskets. remove the locking pin, remove the old one and put a new gasket, and then secure it with the same (or new) split pin.
Care must be taken when changing v-brake pads as they can be left or right (the markings are directly on the pads). Then in no case can they be confused.
In addition, it is not enough just to change the pads, you also need to adjust them. And before that, check the brake cable for wear or breakage. He must be absolutely intact and easily move around in a “shirt”. It is also necessary to check the shape of the wheels so that there are no “eights”.
The brake pads must be properly pressed against the wheel rim. And the pressure can be adjusted (configured) using the shoe fasteners. It is not difficult to get the desired angle if you hold down the brake and loosen the nut on each of the pads.
The v-brake cartridge pads should be located strictly horizontally, touching their entire surface to the rim, but not touching the tire. And when the required position is reached, you should fix it with a shoe nut. Regarding conventional brake pads, the rear of the pads must first come into contact with the rim horizontally.
How to Replace Bicycle Disc Brake Pads
During the tuning process, it is also necessary to ensure that the brake levers come together equally. Position adjustment is possible with a Phillips spring tension screw. If the lever barely moves, then the screw should be tightened, and when the lever moves too easily, unscrew.
It is the bicycle brakes that are responsible for regulating the speed of driving on a two-wheeled vehicle and, in particular, for slowing down the speed of movement, as well as stopping. They can be of several types:
The most common ones used in most modern bike models are disc brakes and rim brakes.
The operating principle of rim brakes is extremely simple. On the bicycle handlebars there is a brake lever, from which a special cable is pulled (or a hydraulic line is laid) to the brake pads located on both sides of the bicycle wheel rim. When the handle is pressed, the rim is compressed by the pads, after which the wheel rotation slows down and comes to naught.
There are two types of rim brakes, which in turn are subdivided into several subtypes:
- Mechanical brakes including:
- vector (V-brake or “vibrake”) with V-shaped attachment of the levers to the brake pads;
- tick-borne (“crabs”) with U-shaped levers;
- and cantilever (obsolete predecessors of V-brakes).
- Hydraulic brakes, in which the applied force is transmitted from the handle to the pads by the brake fluid through a specially laid hydraulic line.
Rim brakes have a number of clear advantages over other types of bicycle brakes:
- Low loads on bushings and spokes.
- Less braking heat.
- Easy setup even in the field.
- Low weight of the actual brake.
- Not a high price at all.
Instructions for setting up the V-brake system. in the video review:
Replacing disc brake pads
There is a step-by-step guide to replacing worn-out disc brake pads:
- First you need to remove the caliper and clean it if necessary.
- Then remove the retaining ring or wiring so that the bolt does not unscrew.
- Remove the boot (twist-on or snap-on, depending on the model). And if the bolt is dirty, then it must also be cleaned.
- Remove old bicycle brake pads. Sometimes they can be easily removed, and in some models they need to be pryed off-tucked a little, freeing them from the L-shaped protruding grip.
- Install new (organic or semi-metallic) pads. They should slide along the rotor, and the spring should not break out of its place.
- Put the bolt, and then the caliper. To check, you need to press the brake lever several times well. And make sure that the pads have settled correctly and correctly press the rotor.
Disc brake pads should be replaced if:
- decreased braking force;
- a brake “squeal” is heard;
- or an unpleasant grinding noise is heard when the brake lever is pressed.
Riding a bicycle with worn disc brake pads is unsafe. In addition, the rotor (the steel brake disc itself) may fail. And this will already require a serious bike repair.
You will see step-by-step instructions for replacing brake pads on a bicycle with disc brakes in this video review: