I just race for fun with a grp of friends and I hv a cyclometer. Let say on the flat with some gradient thru’out, the way to push the bike fastest is it by switching to the gear that gives me the highest kmh? Of course in so doing, I understand I hv to pedal within my limit. What say you abt using this method to maintain the highest speed within myself that I can cope. Is this method equates to achieving the best possible time, disregarding whatever cadence the book recommends.