Robert O.N. Torto, aka Rasta Rolla, is bringing much-needed joy to London's streets. Image: Rasta Rolla

"I got on the bike, fell off it almost immediately."

The first time Robert O.N. Torto took to his beloved penny-farthing bicycle — a test ride, to see if buying one of these eccentric contraptions was really a good idea — he was face-planting into the ground seconds later. "I forgot it was a fixed wheel bicycle," the chipper celeb cyclist tells me. He went straight over the handlebars, or rather with them — on a penny-farthing they basically strap you into your seat, like the bars on a fairground ride.

Dusting himself off, Robert bought the penny-farthing anyway. It was a decision that would change his life.

"There are absolutely no benefits to riding a penny-farthing!"