Sounds like the cable is not routed properly. Unhook the outer going into the brake level and slide it way from the brake lever – the lever should be free. If not, pull the cable and see that its moving freely all the way to the the brakes. First off, carefully check the rear brake and compare it to the front.
A few drops of oil at all the brake pivot points will likely help and many brands of brakes allow for adjustment of the pivot point “tension” via a bolt, nut, or set screw. If you have cantilever brakes then the posts where they mount to the frame might need lubrication.
Two main reasons can make your lever of your bike’s brakes hard to pull, and one of those is that there could be friction in your cable casting and its adjustments lubrication problems with your brakes.
This is caused by uneven wear and you will need to file or sand it down if there is a lip. If you’ve worn your pads down around the lip, then they might get stuck in the rim. Sand or file down the lip. … Be very careful not to sand off so much that the brake pads won’t work!
Unsticking a Seized Brake Caliper
For seized caliper pistons, or slide pins, a special tool is available to apply force and retract the pad. Often a simple C-clamp can be used. … Remove the caliper from the disc, and pump the brake pedal to move the piston past the corroded portion.
Grinding brakes usually sound like a gritty, metal-on-metal sound. … If you hear this sound, it likely means you’ve worn out your brake pads to the point of exposing their metal backing plates, which are now rubbing against the metal of your brake rotors.
Generally I advise against using both brakes at the same time. There are exceptions, however: If the front brake is not sufficiently powerful to lift the rear wheel, the rear brake can help, but the best thing to do is to repair the front brake.
If the parking brakes won’t release, then you need to check the following: Corroded or rusty parking brake cable. Damaged or missing return spring. Rear caliper pivot arm has seized.
Another reason your emergency brake gets stuck is pulling it too hard. Don’t treat your e-brake lever like a strength test from a carnival game. It works just as well without all the effort. When you pull the lever too hard, it can cause your brakes to become stuck against the wall of your wheel drums.
Just to be clear, brake levers are the small metal levers mounted on your handlebars that, when pulled, actuate the brakes (by means of either pulling a cable or compressing hydraulic fluid) to bring you to a halt.
It combines the braking and gear shifting controls into the same component. This allows shifting gears without having to remove a hand from the bars, unlike previous down tube shifting systems. This component is usually referred to as a “shifter” or “dual-control levers”, or occasionally “brifters”.
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