If you are new to the world of the disc brakes then you should pay attention to the things that you should and shouldn’t do to keep them working perfectly. They are no harder to maintain the rim brakes but they are different.
Keep lubricants off the rotors.
Particularly when spraying aerosol lube on your rear derailleur and when oiling your chain if you do get oil on your rotors, then the brakes will work much less effectively. If the termination isn’t too bad, you will be able to ride your bike very carefully until the brakes work properly again and that’s because braking forces generate heat and that will burn the oil off. But the contamination is really bad, so you are going to need to clean the rotor thoroughly by either using a blowtorch to burn the oil off your pads which apparently some people do or just simply replace the pads. So the simple thing in the first place is just not to contaminate it. The problem is- you can’t be accurate enough to spray the oil. Then you should take the wheel out before you do it.
Do not pull brakes without a disc.
It is completely alien to rim brake users but you mustn’t repeatedly pull on the brake lever if there’s no disc in. that’s because a disparate system is self-adjusting, which means that as the pads wear out, they’ll move gradually ever so slightly closer to the disc and your brake feels exactly the same in the lever. In other words, if you repeated on the lever when there’s no disc, the pads will move further and further out until the pistons could drop out and that will drain the brake of oil. Therefore, take a few precautions when you’re traveling. You can get a little plastic adapter that fit inside the caliper and that will stop the pads from compressing the disc. But if you don’t have those and a business card wrapped around a small coin will also do a trick. maintain the disc brake
Take care of your rotors.
The second thing to bear in mind when traveling on your bike is to take care of your rotors. Although they are pretty robust, much more than a rear derailleur, you would not be able to move your back wheel if they get a big whack and bend for the disc caliper is so tight. The way to avoid this is really straightforward- to take your rotors off if you’re flying with your bike and if you are just packing your bike in your car.
If you do experience disc rub then firstly you should check to make sure that your wheel is in the dropouts squarely. If you get a traditional quick release, that’s not going to fix it and you will still get a brake rub. Just take only a 5 ml Allen key and loosen the two bolts at the caliper so that the caliper can move freely. Once it’s doing that you pull the brake lever on and that will square the caliper against the disc. While holding it on, retighten the bolts and that should resolve your brake rub. If it doesn’t, you need to check the disc to make sure that it’s still running straight.maintain the disc brake
Hydraulic brake maintenance
One of the undisputed advantages of disc brakes is their performance in poor conditions. This refers to both the actual braking and the maintenance because hydraulics take very little looking after in poor conditions. However, just like your car, they will need a little bit of TLC from time to time particularly if the brakes starts to feel spongy at the lever that means you need to bleed the system the equivalent of changing your brake cables. You will need to a specific bleed kit that is dedicated to the model of brakes that you’ve got on your bike. Just like the rim brakes, you also need to keep an eye on pads where you can generally get a pretty good idea by dropping the disc out and having a look at the inside of the caliper see how your pads are left.