Even a track sprinter rides for more than 90 seconds
Not at anything like maximal effort. In a match sprint, worst case is going from the gun which will be about 65s for elites, if the serious acceleration doesn't happen until close to the bell then there's well under 30s of real effort.
@Lemonsqueezer Even a track sprinter rides for more than 90 seconds. So all cyclists are endurance athletes. Even @Skülly.