This amazing BMW R100RS is the work of Japanese resto-mod specialists Ritmo Sereno. They reduced the R100′s weight from 242kg to just 190kg, ported and polished the engine, and fitted a 2-into-1 stainless steel exhaust system. The standard RS fairing has been trimmed for a sleeker profile. And it's now resplendent in a livery inspired by the BMW 3.5CSL Group 5 race cars of the 1970s. Want!