On the ground at Mooneyes: BMW unveils a 1800 cc custom

We're in constant awe of the Japanese custom motorcycle scene. Our compadres in the Land of the Rising Sun have an approach to customization that's as unique as their culture—hallmarked by unrivalled levels of creativity and craftsmanship. But thanks to geographic and linguistic limitations, it's a world we mostly admire from afar. The Yokohama Hot Rod Custom Show is the best of Japan's custom moto (and hot rod) scene, distilled down to a potent one-day hit. And last Sunday, I was there to take it all in. Also known simply as the Mooneyes show—after the company that's been organizing it...