Roller Data

Al Morrison's Smooth Roller Data Sets (click on pdf links below to view data)

Date	File name	revision #
11/29/2006	AFM_tire_testing.pdf	1
12/11/2006	AFM_tire_testing_rev2.pdf	2
12/18/2006	AFM_tire_testing_rev3.pdf	3
01/10/2007	AFM_tire_testing_rev4.pdf	4
05/21/2007	AFM_tire_testing_rev5.pdf	5
05/31/2007	AFM_tire_testing_rev6.pdf	6
05/11/2008	AFM tire testing rev7.pdf	7
11/18/2008	AFM tire testing rev8.pdf	8

Additional reading/commentary on how these rolling resistance tests compare to the real world:

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Al Morrison's Bumpy Roller Data sets

Date	File name	revision #
03/29/2007	AFM_Bumpy_Data_BTR_rev1.pdf	1

Comments (2)

|67.49.77.220 |2010-02-22 11:29:22 Steve Boehmke - Road Tubeless Tests

Hi Guys,

Just ready the dealio about the new IRC Tubeless tires.

Noticed that your tests are done inflating the tires to 120psi.

Our Road Tubeless tires are recommended to be run at 100 pounds or less depending on rider weight. At 100 pounds, you will experience the true benefits of Road Tubeless, including a more comfortable ride, and faster rolling on most road surfaces.

It would be cool if you could re-test at the recommended numbers and see the advantages.

Thanks. Cool site.
gpeace,

SB (Marketing for Hutchinson Tires North America)
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|2010-02-22 22:12:42 kraig

Hi Steve,

Thanks for stopping by! :-)

I'd recommend you mosy on over to the forum ( http://forum.biketechreview.com ) and see if you can sweet talk Al into giving your test suggestion a go.

FWIW, I'd be very surprised if the lower pressure did anything but made things worse from a Crr perspectve on the rollers. I've also found similar trends when it comes to lower pressures and on-road testing as well (as noted in a couple links above).
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