Yes, it could take some time for people to get seriously interested in road cycling. MTBs, on the other hand, would be very popular. Even if fuel is available, I imagine that petrol/gasoline is rather expensive for most people to afford. And, it's far healthier to stick with bicycles than to switch to cars.
East Hill
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TRY EMPATHY & HAVE LOVE IN YOUR HEART, PERHAPS I'LL SEE YOU ON THE ROAD...