Rolling Resistance measured on road

[Brucey]

I did mention that upthread; the first objective would be to measure the drag force of the tyre. The second would be to vary the way the load is coupled through the tyre. The third (and probably most difficult) would be to work out what kind of coupling is actually representative of a real rider on a real bike; frames and forks vary, and even how folk sit on the bike/hold the bars can change things.

Not sure about tanks of water; the tanks themselves (even if full) need to be much stiffer than you might think if they are not to flex in potentially unexpected ways.

cheers

[Sid Aluminium]

Do I recall...Dr. Moulton studying rolling resistance in a blimp hangar to mitigate wind variation?

Also through the fog, I seem to remember a test some 40 years ago where a group of professors & students studying bicycle tire rolling resistance built an instrumented teardrop-shaped cart (no rider) to roll down a slope.

[squeaker]

Do I recall...Dr. Moulton studying rolling resistance in a blimp hangar to mitigate wind variation?

Also through the fog, I seem to remember a test some 40 years ago where a group of professors & students studying bicycle tire rolling resistance built an instrumented teardrop-shaped cart (no rider) to roll down a slope.

If you're that interested in test methods and environmental effects, then take a read of Wim Schermer's blog and his novel pendulum test method. Mostly x 405 and x 559 tyres though.