I ride a Marin comfort bike, about 99% on pavement. That should mean that I don't need disc brakes, but I'm really sick of these weak, shuddering, howling, screeching, whistling, locking caliper brakes. I've taken them in for service and they work normally for 2 days, then back to their ridiculous behavior.
Should I try to convert to disc brakes, or look for a new comfort bike that already has them? Are there some better pads or calipers or some kind of rim attachment that I could use? I'm at the midpoint on price, the bike was around $500, and I'm at the low end on mechanical ability. I don't want to bend way over or have a rougher ride (in fact the Marin is already kind of a harsh ride with the tires inflated to 65, and the tires won't stay at 65 more than a day or two).