When this R69S rolled into the workshop of Tokyo resto-mod specialists Ritmo Sereno, it was a slightly gawky custom with mismatched curves and a shapeless silver tank. With their usual attention to detail, Ritmo reworked it into a beautiful cafe racer with more conventional BMW lines and a useful performance boost. The front wheel was dropped down a notch from 18” to 17”, and Excel rims fitted both front and rear. A front brake from a Suzuki GT750 was installed, and the stock Bing carburetors were replaced by a Keihin FCR setup—breathing through new intake manifolds machined from a 70mm bar of 2017S aluminum. New rearsets pushed the riding position forward and the new tank, although it looks authentic at first glance, is actually a fiberglass skin over a handmade 13.5l aluminum interior. A full rewire and custom accessories such as new blinkers completed the job. Ritmo CEO Siroh Nakajima has catalogued the build in detail on his personal blog—head here to check it out.