SUZUKIRM-Z450 2006 - 2007

　　In 2007, Suzuki launched the RM-Z450, a two-stroke motorcycle suited for motocross racing where RM letters stand for Racing Model. The 2007 model received several updates in the engine department and chassis with improved low-to-mid range power deployment, while the Showa suspension was tweaked for an optimal response.

　　The 449cc engine updates consisted of a redesigned combustion chamber for a larger output, re-shaped intake ports, revised carburetor settings, optimized 3D-mapped ignition, and an exhaust pipe extended by 85 mm, all of which resulted in a low-to-mid range power output.

　　In the chassis department, the 2007 model received an updated twin-spar aluminum frame with thicker lower tubes and thinner tank rails, which created a perfect balance of rigidity and flexibility and increased cornering and straight-line performance. For improved traction and straight-line stability, the swingarm was revised by messing with the height and width of the main beam.

　　Both front and rear suspension got new settings, with the front and rear rotors redesigned for weight reduction. For better airflow to the air box, the side covers were vented, and for the visual aspect, the 2007 Suzuki RM-Z450 received aggressive graphics and a gripper seat.

　　The 449cc four-stroke single-cylinder engine with a power output of 58 hp at 8,800 rpm and 45 Nm (33 lb-ft) of torque at 7,600 rpm combined with a four-speed manual transmission and 100 kg (220 lbs) of weight, the bike registered a top speed of 113 kph (70 mph).