Can any of you guys give me a link for test results that show tire grip and roll resistance? Thanks

Can any of you guys give me a link for test results that show tire grip and roll resistance? Thanks

Here's a recent test of rolling resistance of tubulars and clinchers, plus relative traction values for the clinchers:

http://www.rouesartisanales.com/article-1503651.html

Keep in mind that actual rolling resistance and traction depend on the conditions of the test, including inflation pressure and surface that the tires are rolling on, so results of one set of tests may not be able to be compared to the results of another test unless the conditions were duplicated.

That being said, within a set of conditions, the relative values between different tires is general consistent, e.g. if tire A has lower rolling resistance than tire B on a smooth concrete surface, tire A will still have a lower rolling resistance than tire B on a rougher asphalt surface, even if the rolling resistance for both is higher on the asphalt than the concrete.

I take it the lower crr and watt number the better?

Thank you lots for the information!Here's a recent test of rolling resistance of tubulars and clinchers, plus relative traction values for the clinchers:

http://www.rouesartisanales.com/article-1503651.html

Keep in mind that actual rolling resistance and traction depend on the conditions of the test, including inflation pressure and surface that the tires are rolling on, so results of one set of tests may not be able to be compared to the results of another test unless the conditions were duplicated.

That being said, within a set of conditions, the relative values between different tires is general consistent, e.g. if tire A has lower rolling resistance than tire B on a smooth concrete surface, tire A will still have a lower rolling resistance than tire B on a rougher asphalt surface, even if the rolling resistance for both is higher on the asphalt than the concrete.

I take it the lower crr and watt number the better?

I would assume that "CRR" means Coefficient of Rolling Resistance, where experimental rolling resistance would be a function of a number of things: inflation pressure, smoothness of the test surface, the load/weight on the tire, and the intrinsic properties of each tire - the CRR.

So yes, lower CRR should be better.