Sound of Single by Kingston Custom

The biggest cafe racer event in Europe is the Glemseck 101. It’s held in the ancient town of Leonberg in southern Germany, some ten miles west of Stuttgart. Every year, hundreds of motorcycles descend for a petrolhead celebration of speed and style. The highlight of Glemseck is the informal but hotly contested sprint series, which attracts some pretty unusual racers. And this year, one of the most oddball builds was this Porsche-engined Yamaha SR, built by Kingston Custom. The top half of the motor comes from a 911 Turbo. Why the Porsche connection? “It was an idea—a challenge—and it worked...