I have 36x13.5x17, they are the same height as 37x14x17's and almost the same width. Mine are actually a tad bit wider i think.. Best thing is they ended up being about 15 bucks a tire cheaper. I know its apples to oranges but it's kind of interesting how they differentiate between Radial and Bias.
I just bought another set of 36 x 13.5 x 15 biased IROK's last night and I went through the same dilema between choosing the 36 or 37. I finally chose the36 because it's taller, wider, lighter and cheaper than the 37. My friend got the 37's and they are a bit more square but otherwise I like the 36's better they seem to have more agressive side knobs that the 37's. I run them on 2 inch BS 8 inch wheels and they balance out easy and ride super smooth and quiet!
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