Advice 1: How to change the brake fluid on the bike

Bike like any vehicle, requires regular maintenance, including periodic replacement of brake fluid. Frequency of replacement will depend on the terrain and the riding style of the cyclist.
bleeding bike brakes
Bike brakes from different manufacturers can have significant structural differences, but one principle unites them unconditionally: brake fluid should be done once a year, regardless of how good or bad working of the brake system.

If the cyclist spends a long time in the saddle and rides on terrain that require frequent, severe or sudden braking, it is possible that brake fluid replacement will be required even more frequently: every six months.

Visually determine the need for replacement fluid is easy: installing the brake lever parallel to the ground surface and by removing the surge tank cap, the cyclist can appreciate whether brake fluid impurities, has changed its color to see if it is cloudy. All the above factors indicate the need for oil changes.

Preliminary preparation for independent replacement



To avoid contamination with oil fluid brake pads, we recommend that before replacing the oil, they should be removed from the bike. The wheels for the same reason, preferably something to cover.

Picking up fluid for the brake system of the Bicycle, it is important to follow the manufacturer's recommendations. Replace the original oil counterparts for braking of the vehicle is not: automotive oil may not match the parameters of viscosity, contain additives that are not suitable for bicycles.

In addition, automotive fluids can corrode the rubber seals, which will cause damage to the entire braking system of the bike.

Tools to replace brake fluid



Before you begin to self-replace brake fluid bike needs to think about a set of tools. They will need a bit: Phillips screwdriver wrench No. 7, hex keys set, container for draining the used oil, cut the plastic tubing and syringe (optional, but very convenient device for Gulf oil).

Brake fluid replacement



For draining the waste liquid to put the cut tube to the valve of the brake caliper (the caliper) and using a wrench to open it, pointing the free end of the tube into the drainage container.

Press on the brake lever helps drain the waste liquid. Making sure the liquid completely merged, it is possible to fill the hydraulic system with fresh oil.

To do this, use a medical syringe or manually need to fill the expansion tank to the brim, and repeatedly press the brake lever. The liquid will start to leave the hydraulic hose, squeezing out air bubbles. As you lower the liquid level in the tank, it needs a little top up to the tank was left completely empty.

When the hydraulic hose will be filled to overflowing, and the excess fluid will be expelled from the tube in the drainage container, the valve of the caliper can be closed.

The system should not contain air by pressing on the brake: soft and sluggish depression indicates the presence of air. In this case, the valve needs to open again and refill the brake fluid by pushing the brake lever until you feel a hard tap.

Tightly closing the valve in the brake caliper, and removing the tube, you need to top up the expansion reservoir to the top, then the reservoir cap can be spun.

Advice 2: How to replace brakes on Bicycle

The brake mechanism is designed to control the speed or stop the vehicle. The existence of the defect in this mechanism may lead to undesirable consequences. Therefore, all flaws must be abolished.
How to replace brakes on Bicycle

Types of Bicycle brakes


Bike brakes are divided into two General types. Brakes with hand and foot drive. The first type includes rim brakes and disk.

They are called the rim, because the brake pads are located at the level of the wheel rim. When braking the pads put pressure on the rim, there is a friction and as a result, the Bicycle stops.

Disc brakes – brake mechanism by which the inhibition occurs due to disk, fitted on the wheel and pressing in on his pads. The pressure is generated due to compression. It creates a brake cylinder, which is in most cases on the wheel.

The second type is a drum brake. It is located in the hub of the rear wheel. When you stop the bike, brake the carriage becomes vraspor and presses on the drum. The braking mechanism is designed so that consumable items his are the only bearings.

Replacement rim brakes


Easier just to replace the rim brakes. To do this, loosen the cable clamp, weakening this "shoulder" brakes. Then proceed to screw fixing to remove the brake pads. Next remove the bolt that attaches the brake to the frame. After they were removed, go on to the brake lever. Completely Unscrew it from the cable and loosen the. The screw is often screwed on the bottom and has a cutout for cross screwdriver. To put new brakes, proceed back to the aforementioned algorithm.

Replacement disc brakes


Remove the disc brake should the brake cylinder. Loosen the cylinder and the handle. Remove them without loosening the brake hose. Then enjoy the pads. Loosen all the bolts fastening them to the frame, and remove the brake disc. You can then put a new one. If you do not wish to dispose of old brake and put it into fuel, by analysis of the components parts, be careful. Drain brake fluid into a prepared container. Completely eliminate its contact with the ground.

Replacement drum brake


The most complex mechanism have drum brakes. To replace them, it is necessary to remove the rear wheel. It's best to do when the bike is upside down. After it was removed the wheel, loosen the outer nut of the carriage. On the opposite side remove the snap ring to get the star. Remove the brake gently. Be careful not to damage bearings. Before you put new brakes, liberally lubricate the drum and brake mechanism. As lubricants are well suited "Litol".
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