Originally Posted by
smallwheeler
the chart that you referenced is for balloon tires.
the recent discussion was regarding narrow high
pressure tires. these tires (primo comets, for example)
were designed and formulated to be inflated to high
pressures to reduce rolling resistance for smaller wheels.
that is the purpose.
Hi,
Whilst that graph compares a balloon tyre to a more typical tyre,
the same sort of thing applies to a typical tyre and very narrow
tyres, narrow tyres need very high pressures to avoid the sort
of things you were talking about, pinch flats etc.
I wouldn't call 1.5" "narrow" but they are labelled "recumbant"
tyres, which is pretty specialised compared to my prosaic folder.
rgds, sreten.
http://www.bikequarterly.com/images/TireDrop.pdf
http://janheine.wordpress.com/2012/0...ance-of-tires/
http://www.biketinker.com/2010/bike-...-for-bicycles/