Cost of bike parts vs car parts
This is just a short rant. I recently replaced disc brake pads on both my well-used bike (5K miles/year) and seldom-used car (2K miles/year). The parts cost about the same, $25 for pads for two wheels. If you've never done a brake job on a car, the pads must weigh about 100X more. I get the economies of scale, but I think it's a shame--it should be the other way around.