Yes, very much so. VERY MUCH.

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"Non est ad astra mollis e terris via." - Seneca | rappstar.com | FB - Rappstar Racing | IG - @jordanrapp

"Yes, very much so. VERY MUCH."
Wouldn't that depend on precision and accuracy?

well that would not be the problem
i guess we gone make several diff versions
and test showed that we could measure in ideal situation 1 gram
but as 10 gramm in this world is already high precision !!! you do not have to worry about that
hence a extremly good load cell is in the 0.1N and we are even better and cheaper with our device
but again its stiil in design fase
the numbers will determine or we gone do it yes or no

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http://www.ada.prorider.org
skype ceesbeers191053

Given the quality of ADA wheels, I do not doubt that anything that leaves Cee's hands would be of insufficient precision or accuracy.

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"Non est ad astra mollis e terris via." - Seneca | rappstar.com | FB - Rappstar Racing | IG - @jordanrapp

I'd be very interested in finding out more about your design and possibly comparing results with my roller data.

"i guess we gone make several diff versions
and test showed that we could measure in ideal situation 1 gram
but as 10 gramm in this world is already high precision !!!"

This is why I worry: Crr is demensionless. 1 gram or 1 furlong doesn't have much to do with things. You have to accurately isolate the rolling resistance force and the weight to get Crr. The Ibike could have the most sensitive sensors in the world, but the sources of error would remain.

Is it not enough to test the loss modulus of the tire compound in a instron type compression and recovery test?

I would think that would be the purest test of the tire material and would be directly correlated to the rolling resistance.

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http://www.ada.prorider.org
skype ceesbeers191053