Comment Boneshakers did not have pneumatic tires (Score 1) 71
They were boneshakers because they didn't have pneumatic tires. This is not true of a modern bicycle, and we also have far more understanding of mechanical systems and materials, including wood, now.
It is a widely perpetuated myth, mostly by bicycle frame makers who are attempting to get you to spend gobs of money on special designs, frame materials, etc that are "vertically stiff and horizontally compliant" (this phrase is now such marketing cliche it's mocked a lot)...that road bicycle suspension happens in the frame. It doesn't/shouldn't. It happens almost entirely in the tire/tube; when you go over a bump, the rest of the tube+tire stretches slightly to absorb the impact, and then contracts back. Some suspension also happens in the wheel; a wheel is quite strong in part because the spokes and rim both have some give to them.
Just as with cars, the most effective suspension is the one that has the least unsprung weight. So for example, high performance cars often have suspension and brake components made out of high-strength-for-weight materials, but in general, car manufacturers try to keep the weight of the suspension down.
On a bicycle with a properly sized and inflated tire for the rider's weight and road conditions, there is very little unsprung mass