明らかにワイドタイヤの方が転がり抵抗が小さい。
Evidently the rolling resistance of wide tire is smaller than that of
normal tire.
惰行試験結果 Result
of test in proving ground.
明らかに転がり抵抗、f25とも低減している。
空気抵抗は若干悪化している。
Evidently the rolling resistance of wide tire is smaller than that of
normal tire.
The resistance at 25km/h is also smaller.
Observation:
The tread of the tire is transversely extended due to the use of wide
tire.
So the strain of runnning tire may be smaller. Then the energy loss
by hysterisis in tire rubber may be smaller.