How to adjust my bike's rear disc brake? masyadong mahina yung brakes ko :(

please help... thanks in advance! :)

The things you need to check are:

Brake pads-- are they worn? what type of material used?

Brake hose-- Is it still the original? Does it expand when levers are actuated? You might have to change to steel braids.

Calipers-- are the pistons clean and clear? seals? corrosion?

Rotors-- does it conform to factory minimum thickness? Is it warp?

Fluids-- when was the last time it was replaced? Is it DOT4?

This things apply for both front and rear.

thanks for repying...


the answer is yes... i use dot3 break fluid...

good day fellow bikers,

i have a problem with my disc brakes, i follow the suggestions found here in forum, and it works, Tnx! The problem I encountered now is when I try to use the disc brake, nag stucked up, so hirap n kn i-free wheel, kya ang bumilis uminit nun disc. Any suggestions baket ganun? Tnx !

muro ami,

ey dude we have d same problem. b4 sotock up na ung calipers ko so i bought a surplus. ngyon probl;em ko ng ikinabit ko ung pads dun sa bagong caliper nag stuck up din saya. wat i did was i sand d old pads to make it thiner then after that i placed it back then walah...... good as b4!!!!

sometimes kc ung mga brake pads na nabibili natin medyo makapal para sa caliper or para sa disc so pag nilagay mo sya konting pihit mo lang ng lever stuck na agad sya.

ope dis helps u in solving ur brake problem.

Typically, rear disc brakes are not very powerful. Your front brakes will do the most work to stop you when both are applied to stop the bike. You should be careful when using the rear brakes especially in an emergency situation as you may lock the rear tire up when weight abruptly shifts to the front when braking hard.

That said, when you apply the brakes, the pistons in the calipers are pushed out and the brake pads squeeze the rotors. When you release the brakes, the pistons no longer push on the brake pads and squeeze the rotors but they do not retract back into the calipers either. The brake pads then may lightly skim off the surface of the rotors and produce heat but should not create a lot of "drag". They may or may not allow the tire to "freewheel" because of the brake pads lightly touching the rotors but the pads are not under pressure from the pistons pressing on them.

If the piston in the caliper is stuck because of rust or dirt, the pads may not even move and either hold the brake pad against the rotor more than it should or it may not even move forward enough to apply pressure.

As stated earlier, you might have to diaassemble your brakes to clean it and examine it for rust or dirt and a stuck piston as well as ensure that the seals are intact. Install the proper brake pads and check to see if the rotors are not warped on have high spots that drag on the brake pads. Hope this helps.