It was a time when the British countryside was opening up to working-class people. Britain’s first national park, the Peak District, opened in 1951. Finally, the moors and dales were not just the preserve of wealthy landowners but ordinary people, who could pedal out from their homes in the counties of Lancashire or Yorkshire for a two-wheeled adventure. Off they went, fortified by flasks of tea, sandwiches and perhaps a puff of a pipe, wearing sturdy leather shoes oiled with margarine, woollen knee socks, button-down shirts and tank tops.

https://www.theguardian.com/lifeandstyle/2019/jun/13/break-the-cycle-britains-oldest-off-road-club