Senior Member
Quote:
That will also depend on the inflation pressure, and there are tables for load vs inflation pressure for each load index. Originally Posted by Ammi
do you know what in lbs?
From the RE92 sidewall, it's 1433 lbs @ 300 Kpa (44 psi)
I asked a similar question elsewhere and was provided with the following. I've converted it from its original metric units, but I suspect that the info is for Load Index 94, since the max load for a LI 94 tire that I can find elsewhere is 1477 lbs.
1477 lbs @ 250 Kpa (36 psi)
1235 lbs @ 200 Kpa (29 psi)
Anyway, you may linearly interpolate for intermediate pressures (each psi is worth about 33 lbs of rated load) and can probably extrapolate for pressures that are slightly lower than 30 without being too far off. You can probably use the 33 lb/psi starting with the 1433 lbs above if you also assume the 1433# to be valid at 36 psi (meaning that the 1433 lbs and 44 psi on the sidewall are only the maximum values of load and inflation pressure and that they are not necessarily concurrent).
Since I'm not sure about pressures above the 36 though, I'd initially assume that there's no load capacity to be gained due to whatever other limitations may exist. If this question is leading toward tinkering with your tire pressures, keep in mind that you should maintain some margin above the static load to account for load transfer under acceleration, braking, and cornering.
More than you expected to hear, right?
Norm
