Brakkies Sport Fotos Posted January 24, 2007 Posted January 24, 2007 http://www.bicicletta.co.za/images/Rolling%20Resistance%20Eng%20illustrated.pdf
Thug Posted January 24, 2007 Posted January 24, 2007 Shamus brought that out a while back. Makes for interesting reading and consequently I'm now running my tyres at approx 2 bar.
Velouria Posted January 24, 2007 Posted January 24, 2007 Anyone going to post a short summary for us "FIRMLY inflated narrow tryes are history. 'Fat' and less air speed things up."
Thug Posted January 24, 2007 Posted January 24, 2007 Anyone going to post a short summary for us "FIRMLY inflated narrow tryes are history. 'Fat' and less air speed things up." Short enough ?
Brakkies Sport Fotos Posted January 25, 2007 Author Posted January 25, 2007 What they say is (not applicable to tar)..but only to dirt roads: The smaller the tire (1.9) and harder, the more resistance, as the tire "contact area" (they called it patch) is longer. The fatter the tire (2.1 - 2.4) with softer (like 2bar) The fat tire "patch" is shorter . The patch is when you sit on the bike, that piece thats flat on the ground. They recon the wider and softer tire don't make a big patch because the air goes side ways as well in the fat tire
rock Posted January 25, 2007 Posted January 25, 2007 I always thought it would be the other way around......
rock Posted January 25, 2007 Posted January 25, 2007 but wider tyres are heavier, what happened to the lighter wheels less rolling resistance theory ?
TitusTi Posted January 25, 2007 Posted January 25, 2007 Lighter wheels with the same contact patch are faster.
rock Posted January 25, 2007 Posted January 25, 2007 this still just sounds like tubeless propaganda......
I FLY Posted January 25, 2007 Posted January 25, 2007 I am running tubeless killerbee tyres at about 2bars and they are fast.
MichH Posted January 26, 2007 Posted January 26, 2007 Erm I FLY, I've ridden with you, and you're the fast part of your bike!!
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