which is better-DRUM BRAKE OR DISC BRAKE?
Disc brakes are better because when they warm up, the disc gets larger and is therefore closer to the pads, meaning you don't have to push as hard on the pedal to get good braking. Also if you drive through water, it just falls off the disc so you get your stopping power back very quickly. They're also generally more efficient than drum brakes and are easier to set up.
Discs. Discs are largly self-cleaning, have better grip, better heat distribution (ever seen the Indy or F-1 cars with their cherry red brake discs?) and are far far lighter. Drum brakes collect stuff, gumming themselves. They are complicated, heavy, and prone to fade. But they are very very strong and can apply a lot of stopping power for a long time. That's why modern vehicles pretty much all use discs, except in the very heaviest applications (trains and large trucks).
USA--- Costco or Auto zone or at your local dealer
