What fails first? Your quads or your grip? Your lats or your grip? What you training?
You worried about your grip strength? Train grip? You lazy, like me... Do all above until your grip fails ( you've trained your grip) you haven't trained back or legs yet. Use straps so you can.
Don't understand, why do a hook grip when you can use a strap?!
Who rides a bike without shoes with...?! You don't see me curling my toes round the spindle.