Yes, it's possible to lock the front wheel with a brake and go over the bars. I did it with my first adult bike in the 1960s when I grabbed a handful of front brake while sitting upright. Physics is a biatch.
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What, Me Worry? - Alfred E. Neuman
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me