Come over to the Dark Side and we will complete your training. Buy a recumbent.
Before you dismiss it out of hand, consider the benefits:
1) They're very vertebral column friendly.
2) You really get a much better view of the world.
3) They can be rigged like a pack mule if you need to.
4) They're babe magnets. Really.
5) If by chance you have a grey beard and an aero belly, you'd be a natural.
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Momento mori, amor fati.