You asked for it so we have done it. 37x13.5R17 131Q (1950kg/160kph) in an All-Terrain. You read that right an ALL TERRAIN. Due to dock @ EVA in July / August. This is the highest load and speed rated 37AT in the world. We have been asked daily for an A/T since the beginning, and finally we have worked with a well known company to secure one. Say hello to quieter ride, longer wear, and that lovely 13.5" width for sand bagging to be proud of. Fraser Island here we come!
Because it is a flotation tyre (Not a truck tyre), it will be released in 13.5" wide to ensure inflation pressures are suitable for comfort and off road performance. Narrower tyres will require an increased pressure to sustain the same load. This increases risk of puncture and causes ride harshness.
A 37x13.5" Tyre at 1950kg requires 65PSI
A 37x12.5" Tyre at 1950kg requires 70.2PSI
This is true at reduced pressures as well. For sand driving, the additional pressure will still be required in narrower tyres.
As this is a shopping based website, we have to include a price below. Obviously the tyre will be cheaper than $999999999.00