Originally Posted by
rebel1916
Um a big hunk o heavy, on the on the outside of the rims is gonna be a big hung o heavy in the worst possible spot for rotating weight. So yeah, the weight will make it slower. Plus it may ride crummier than the average tire.
Um... It's the total mass of the wheels, bike, and rider that matter. When accelerating, you count the mass of the tires twice, but this is still only a couple percent.
If it were the mass of the the that mattered, then it would be hard to get up to speed, but easier to maintain it, and yet we never hear anybody describe this benefit of heavy tires.
The composition of a tire makes a huge difference. Weight, not so much.