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@gbj_tester
It's good if you can hold it, but hardly anybody is at their fastest in endurance events at such a high cadence. With only minor exceptions, the hour record was set with a cadence of 100rpm for most of its history. Maximum power is usually at high cadence, hence track sprinters putting out 2kW at 150rpm, but maximum efficiency is at much lower cadence, some lab tests suggesting about 60rpm. Time trialling is about striking the right balance between the two, to sustain the highest possible power without exhausting the fuel supply.