For a freewheel,I think that it is the momentum of the cranks and pedals that carry you over the dead spot. With a fixed wheel the momentum of the rear wheel will help the cranks over this point.
@markyp started
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For a freewheel,I think that it is the momentum of the cranks and pedals that carry you over the dead spot. With a fixed wheel the momentum of the rear wheel will help the cranks over this point.