40mph is ~125rpm - that's frantic for a snail or sloth maybe.
It would take a brief burst to reaccelerate, and then you may as well concentrate on getting a good aero tuck to maintain speed. I've 'sat' on the top tube and coasted past people who bemoan their lack of an 11t despite weighing less than them. I've also *gracefully *pedalled past them on medium gear fixed, but that's another story.
40mph is ~125rpm - that's frantic for a snail or sloth maybe.
It would take a brief burst to reaccelerate, and then you may as well concentrate on getting a good aero tuck to maintain speed. I've 'sat' on the top tube and coasted past people who bemoan their lack of an 11t despite weighing less than them. I've also *gracefully *pedalled past them on medium gear fixed, but that's another story.