I recently bought a mountain bike last week and it made me frustrated because after 3 days the break doesn't work. I plan to buy new one, does anyone tell me what's the best brand for mountain bikes?
most mechanical and hydraulic implements wherever made will not just break after 3 days....
maybe you can do some checking and do a fix it 101
trigger ( lever) medium ( cable or hydraulic hose) and receiver ( mechanical clamp or hydraulic clamp) whether disc with rotor or the type that puts a squeeze on your rims
- check the lever if it still activates movement onto whatever brakes you have
- check the mechanical tension or the hydraulic pressure to match your needs by adjustment or bleeding
- check pad wear if unusually quick or not
i am assuming you do not do downhill or freeride both of which make heavy demands on your brakes
do a little 101 first to learn about brake technicalities before going out to buy a new one