Friend of mine has a 3-door version of my Montero/Pajero (same model year), which comes with 15 inch alloy wheels. I'm helping him select a decent tire, but it seems to be difficult to find a decent one in the required size - 31 x 10.5-15 6PR (Load Range C) LT. The speed ratings are fairly low, and when you find one with a reasonable speed rating, the price sky rockets. The OEM Yokohama Super Digger tires are available, but at $160 a piece there are better alternatives IMO. The same can be said about temperature, treadwear and traction ratings - most are B at best. Mine comes with 265/70-16 112H tires from the factory, so they are much easier to source than his as far as specs are concerned. Having checked the USDM version of the vehicle, it comes with exactly the same wheels but the tires are 265/70-15 110H. My question is, would it be appropriate to fit these over the specified tires? Would it be necessary to recalibrate the speedometer or anything like that if these are fitted? It's just that these are better priced, and are better spec'd for his usage. Thanks!