The Suzuki DR650 is a long-standing model in Suzuki's lineup, introduced in 1990 as a replacement for the DR600 model. The DR is a 644 cc, 4-stroke, single cylinder, SOHC, 4-valve, air/ oil cooled dual-sport motorcycle with a counterbalanced engine that develops 36 horsepower. It has a 13 L fuel tank. Chain Size: