When it comes to brakes there is something to be said. It might be a mundane subject, and definitely materialist, and when it comes to cycling long distances carrying a load of gear, and traversing hills and mountains, brakes are very important items which can, in fact, mean the difference between injury and death, and staying upright among the living. All my bikes used the horseshoe-shaped caliper brakes, the kind they had on the old "English racers" in the 1960s-70s-80s. All my tours---about 40,000 miles through 19 countries, including the Rockies and the Alps, got along just fine with these kinds of brakes. On the southern tier it required two sets of pads for the back wheel and one for the front, because of wear, of course. On one crossing of the southern tier I got all the way across on only one set of pads, and those on the front. There were no brakes on the back. A one-brake tour is definitely not recommended, and if it is, it is recommended against. There was at least one very interesting experience resulting from the one-brake tour that had a salutary affect on me.
I am at the top of this long and steep hill, beginning to descend. It is raining. The speed increases. I work the brakes to lower the momentum to be ready to stop at the 4-way intersection at the base of the hill, with fast-moving traffic going past. Braking power is 90 per cent gone. Water and small debris from the road coat the pads and rim. I squeeze the brake lever as hard as I can and just keep rolling along toward the lines of cars and trucks speeding along at 90 degrees from the road I am on. Because of caution and experience, my decision to start braking early in the descent brings me to a hault in the intersection, just short of traffic.