schardbody
+1y
wow, i think the most pressure i have ever filled my front to is 90psi, and the rear about 60psi.
i ride with front at 55-65 (depending on the road), and the rear at 20-40 (depending on the road).
lower the pressure is usually always the best ride for me.
as for valves, the whole setup is what determines speed.
line size and pressure as well as the valve's orfice size determine the speed. the more air you flow in a given time.