2013 Suzuki RM Motocross Lineup: RM-Z250 and RM-Z450

2013 Suzuki RM Motocross Lineup RM-Z250 and RM-Z250

Suzuki has announced its 2013 motocross lineup, featuring Suzuki RM-Z250 and Suzuki RM-Z450. For 2013, both models get engine updates, new transmissions and new suspension.

Suzuki has updated the RM-Z450 and RM-Z250 with all-new Showa Separate Function front Forks (SFF) instead of Kayaba‘s new pneumatic spring forks found on Honda and Kawasaki’s 2013 motocross bikes. However, Suzuki said that the new fully-adjustable SFF suspension system has less friction and weight while increasing absorption performance compared to the forks on the previous models.

The 2013 Suzuki RM-Z250

The Suzuki RM-Z250 sports compact and lightweight 4-stroke, 249cc, fuel-injected, DOHC engine that is modified for increased reliability. As mentioned above, the new Suzuki RM-Z250 now a redesigned chassis and suspension, including the all-new Showa Separate Function front Forks (SFF). Its engine is mated to a new 5-speed transmission with revised gears and shift cam, and also receives a revised piston, connecting rod and piston pin and updated intake and exhaust cams, which is claimed can improve mid-range torque and acceleration.

Other improvements include a new Dunlop MX-51 tires as well as a new frame and seat rail to optimize rigidity balance, promising nimble handling and stability.

The 2013 Suzuki RM-Z450

The Suzuki RM-Z450 is powered by compact and lightweight 4-stroke, 449cc, fuel-injected, DOHC engine. Just like the new Suzuki RM-Z250, the 2013 Suzuki RM-Z450 also receives all-new Showa Separate Function front Forks, a new 13% lighter piston, revised piston pin with a DLC surface treatment for better durability, and connecting rod as well as a new intake cam to smooth power delivery. The use of Showa Separate Function Fork (SFF) instead of Kayaba’s Pneumatic Spring Fork makes the Suzuki the only SFF design in the 450 class.

The transmission system has been also updated with revised gear shapes for second through fifth gear and gets a new shift cam that is said will more precise and solid in gear changes. The 2013 Suzuki RM-Z450 now also comes with an updated twin-spar aluminum frame.

Both Suzuki RM-Z450 and RM-Z250 also come with three electrical couplers, allowing the rider to adjust the fuel setting to suit track conditions by just connecting either coupler, all without using tools. Fuel injection indicator light is also available as optional.

The Suzuki RM85 and RM85L will return for 2013, but with no changes from last year’s versions.

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