Bike: 2015 Suzuki RM-Z450

Suzuki’s 2015 RM-Z450 model broke cover in the US over the weekend. Here’s what we know:

The biggest upgrade for 2015 is the inclusion of Showa SFF (Separate Function Front) Air Forks, which will now come standard on all RM-Z450 models. Tested and proven by factory racers including James Stewart, the Showa SFF Air Fork delivers a more progressive suspension feel and offers infinite adjustability in a package that’s over one kilogram lighter than conventional spring forks. Adjustments to the Showa SFF Air Fork can be made easily with the use of a hand-held pump.

The 2015 RM-Z450 features Suzuki’s all-new Holeshot Assist Control technology, aimed to provide racers with a distinct advantage every time the gate drops, no matter the surface. By selecting the Holeshot Assist Control’s A Mode, riders will have enhanced traction and less wheel slip on hard-packed or slippery conditions. In B Mode, the RM-Z450 provides a more aggressive launch when gate conditions provide more traction. In either mode, the Holeshot Assist Control is programmed with specific commands that return ignition timing to normal operation and let riders power into and through the first turn. Riders can engage the Suzuki Holeshot Assist Control from a button on the left-side handlebar, and can shut the system off, too.

Suzuki engineers have redesigned a number of components on the 2015 RM-Z450, including a longer kickstart lever, revised kick-gear ratios, updated de-compression system, a redesigned exhaust camshaft and more. It’s claimed that the 2015 RM-Z450 also features a 16-percent more efficient cooling system, with fluids traveling more effectively between right and left radiator halves, plus an updated water-pump cover and revised hose connection directing coolant directly into the water-pump.

The 2015 Suzuki RM-Z450 has received several more improvements, including precision gear matching for improved shifting feel, a revised exhaust muffler to meet strict AMA sound regulations and redesigned frame members for a four-percent weight reduction and balanced rigidity. The bike still features Suzuki Fuel Injection with two additional plug-in fuel couplers feeding a 449cc liquid-cooled four-stroke engine with dual overhead cams, as well as Renthal FatBars, Excel aluminum rims and waved disc rotors.

Stay tuned for more information on an Australian release date and pricing structure.

To watch Ricky Carmichael putting the 2015 Suzuki RM-Z450 through its paces, and learn a little bit more about the bike, click here, and for information on it’s 250cc brother, click here.