That's an inspiring... couple of stories haha
I always considered that I really started living when I started keeping secrets from my parents lol and doing things I'm sure they'd consider me too young to do them.
As for biking, the only time I rode my bike for more than 70Km (that's even less than 50 miles), I didn't touch my bike for three days afterwards lol Every time I as much as look at it,for those three days, the pain comes back to me :/
Oh yes, that much time in the saddle really hurts, if you haven't worked up to it. Same with running. You wouldn't run a 10k without running several 3 and 5k's first! But sometimes we forget in the middle of a pleasurable activity that we haven't worked up to it. Funny about keeping secrets from your parents. I used to do that too. I suppose every kid does. It's how you begin to separate from them and become yourself.