Originally Posted by
jj1092
No idea why you wouldn't 7thuse the manufacturer's recommended tire pressures as labeled on the tire. Seems like you have a tire on your bike that you trust (because it's on your bike, and you're still using it) then you have to go to some source that says you shouldn't trust what the tire manufacturer says. Why? Based on what?
Why complicate a simple procedure? Air them up to the recommended max pressure, and if anybody in the family complains the tires are too hard, let some air out.
The max pressure on the sidewall is aimed at the worst case fattest rider they could imagine ever using them and the highest safe pressure it can withstand. It is almost certainly a very poor starting point for most riders.
Personally I would start with the minimum pressure on the sidewall, especially if the respected calculators like Silca or SRAM are suggesting even lower pressures for rider weight and road type.
Some tire manufacturers do also provide more detailed pressure guides than just the min and max “safety” settings on the sidewalls. For example they often provide recommendations based on rider weight bands.