Gyro_T

It was a well done interview of Neil Shirley by Velo News tech guy Dan Cavallari. It was worth the listen for me. Dan is very savvy. It did a great job pointing to direct experience of racers using high volume tubeless system. It was fun hearing about their teams experience at the Paris-Roubaix cobbles. The advantages of higher volume on any surface that is not fairly pristine tarmac, is pretty much indisputable at this point. Tubeless is great for specific situations. The interview does not delve into the idea of pressure equivalency, which is fine. I have learn a lot from my research and from this forum. I have learned that being a bike geek like my friends on this forum does not give you an intuitive feel for the relationship between tire width, pressure and contact patch. The physics that describes it involves not just width, but casing thickness, compound properties which effect hysteresis, circumference of the "torus", and total volume. The great thing is that we can reduce it down to just two of those variables, inflation pressure and tire diameter , to explain 95% of the factors contributing to the ride. The Berto paper (https://campusebikes.com/documents/Tireinflation.pdf) is a gem because he did his measurement directly with a dial caliper, hydraulic jack, and load. Direct measurement like this are invaluable as they can be compared to casing tension calculations like are covered in the Flocycling paper: https://flocycling.com/blogs/blog/fl...or-wider-wheel. Thanks to all that contributed to this discussion. Much can be translated to wheelchair users, many who suffer from vibration exposure from their wheelchairs. Tailoring tire width and pressure are readily available tools for reducing this exposure.