Quote:
Originally Posted by rumatt
WTF you ask, how can an 18" be more harsh? I'm not entirely sure I understand, but I believe it's the little understood phenomenon of tire casing pressure and barlow's law. Think about bicycle tires. The larger the tire, the lower pressure you run to achieve the same ride quality and sag pct. A 1" road bike tire may be pumped to 100psi, a 2.5" mountain bike to 25psi, and a 5" fatbike tire to 8 PSI. The 18" wheel's tire has a larger rubber surface area.
This article gets into the math http://flocycling.blogspot.com/2014/...less-tire.html |
I ran into this when considering going from 23mm to 25mm width tires on my road bike.