I think people who grew up doing BMX or skating in their teens/tweens are probably going to have the reflexes and people who are forty and never did that stuff are probably not going to learn now. I'm definitely much less brave than I could be on my MTB.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."