We first got to hear about 4H10 when our friend Gotz sent in his picture of a bunch of guys trail riding on urban bikes, plunged axle-deep in mud. 'Mad bastards,' we thought, and then realised the ring-leaders were 4H10 - two guys who ride through Paris late into the night when all the tonka toys are tucked up in bed. But the bike's they're building are even more mind-blowing...
K/K was set up by James, Ben Claasen and Nico Sclater but Ben and Nico have moved on. James' workshop in Hackney is full of bikes and half-built projects but calling it a business might be a stretch as there don't seem to be any customers.
Even by the standards of custom builders, Walid Ben Lamine is not normal. The Frenchman is an ex-race team mechanic and world championship rower with a passion for speed. Step inside the world of bad winners.
British and American customizers dominate the scene, but there are plenty of talent hotspots wlsewhere. Rajputana Customs is just one example, building bikes in Jaipur, India for a growing band of riders.
In the depths of Norfolk sits a shed. From the outside, you'd guess it would contain a Massey Ferguson or perhaps a large heap of turnips. Instead it's home to one of the most innovative bike builders in Britain.
With a background in industrial design and automotive engineering, Bo's experience spans pre-war to post-industrial 70s machines. As a sideline to his 'real' job, he restores and customises some ridiculously radical bikes.
William Knoll is a man obsessed. He's an ex-fashion photographer with a passion for fabricating every part of his motorcycles himself. The results are phenomenally pure motorcycles with styling cues from cafe racers, scramblers, flat-trackers and Scandinavian furniture...