Fusing classic styling with contemporary sensibilities, the BMW Concept 90 sees the German manufacturer team up with U.S. custom bike builder 250GP in celebration of 90 years of BMW motorrad and 40 years of Beemer's R 90 S. Constructed in a Californian workshop, it boasts a 900 cc air-cooled flat-twin boxer engine that will generate 115 hp. Handmade from aluminum, it weighs less than 420 pounds and is finished with a cool Daytona orange paintwork.