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@gbj_tester
That's his point; it is comparing apples with pears, rather than the more common incomparables such as chalk/cheese or apples/oranges. Pears and apples are both pomaceous fruits, and likewise high performance and low rolling resistance are closely related. Even at 50km/h,rolling resistance accounts for around 10% of the total power required to propel a bicycle, so ultimate performance requires that attention is paid to it.