After the apocalypse I'm gonna be rockin bikes 24/7 yo. In fact, I've been prepping for years! I have an 'arage full of half restored rusty-ass rides and the furious missus to prove it.
Bikes are reliable, plentiful, hardy, fuel-free, all terrain, stealthy and easy to fix - no wonder we never see supercharged V8 muscle cars in post apocalyptic films or videogames, they make no sense at all!
So when CO2 emissions, oil wars, nuclear bombs and your uncle's farts finally kill off what remains of this flimsy oh-noez layer I'll see yous in the desert for some sweet wasteland wheelies.