MarcusMaximus
Active Member
I don't believe that is the case. The moving friction coefficient of the tire against the road, while maybe 30% to 50% smaller than the static friction coefficient of the same tire against the road, is much much greater than the rolling resistance of a set of free rolling wheels, which have bearings for a reason.
Just try to apply the brake on the trailer and toll it. Once the trailer moves the wheels lost traction, but it still excert much greater resistance comparing to when no brake is applied.
That is all true, but rolling resistance != coefficient of friction, which was my only point. Less a disagreement with your actual point and more a correction of a minor technical point