Originally Posted by aclinjury

this is not a false claim (practically speaking). Back in the day, guys would be using wide tires like 2.3" (remember before this they were using 2.0-2.2") and low pressure so they get some better traction. Well as it turns out, it was the lower pressure that was causing the pinch flats. I myself didn't experience much pinch flats under this combo because unlike most guys I run my pressure about 10 psi more (most were running 25 psi, I was running 35 psi). Of course today this is much less of an issue in mtb now because of the switch to wider rim (more volume) and tubeless.

But see man, just because some components of the chart is outdated, it doesn't mean
1. the chart is useless
2. nor is it completely outdated because there ARE still people running old equipment. I still have a Specialized 2007 Enduro running old school wheels!