Suzuki has announced its 2013 RM-Z and RM model lineup. Four bikes return, two RM-Z full size motocross models and two RM Kids motocross motorcycles.
2013 Suzuki RM-Z Models
Suzuki has two full size RM-Z motocross models for 2013, and both have had major upgrades from the 2012 versions. The RM-Z450 and RM-Z250 both sport liquid-cooled, fuel-injected, four-stroke, single-cylinder, DOHC engines.
Suzuki gives the 2013 RM-Z450 the Showa Separate Function Fork (SFF). The 48 mm fork has the spring in the right fork leg and the damping cartridge assembly in the left leg. The new fork provides smoother performance by increasing absorption and reducing friction. It’s also lighter. The 2013 Suzuki RM-Z450 is the only model in the 450 class using the SFF design. To match the new front fork Suzuki has tweaked the settings on the rear shock.
The engine on the RM-Z450 also recieved some upgrades for 2013. New piston, piston pin and connecting rod are 13 percent lighter, reduce mechanical loss and provide quicker throttle response. Suzuki also redesigned the muffler, making it 50 mm longer, to give the bike better performance in the low to mid range of the powerband.
A redesign of the five-speed tranny, including reshaped shift cam, stopper spring and drive shaft gives the RM-Z450 more precise, solid shifting.
The 499 cc, fuel-injected, liquid-cooled, four-stroke, single-cylinder, DOHC engine has a compression ratio of 12.5:1. The RM-Z450 has a kick starter and electronic ignition.
Outfitted with a 21 inch front tire and 19 inch tire in the rear, the 2013 Suzuki RM-Z450 has disc brakes front and rear. Riders sit 37.6 inches high and get 12.8 inches of ground clearance. Overall length of the RM-Z450 is 86.2 inches and the wheelbase is 58.9 inches. Ready to the ride the bike weighs in at 249 pounds and has a fuel capacity of 1.6 gallons.
Suzuki offers no warranty on the 2013 RM-Z450. It’s available in Champion Yellow and carries a base MSRP of $8,699.
The 2013 Suzuki RM-Z250 gets its share of upgrades. It now features the same front fork technology, the Showa SFF, that provides lighter and firmer suspension up front. Rear suspension, featuring a Showa Piggyback shock, gets adjustment tweaks to keep it matched with the new SFF front suspension.
Suzuki tweaked the RM-Z250 engine for 2013, including newly designed piston and piston ring that are three percent lighter. Smoother power delivery and better throttle response are assisted by a revised crankcase reed valve that lubricates more efficiently and a stronger magneto in the new oil strainer. The muffler on the RM-Z250 has been stretched by 40 mm and given a new silencer that meets current noise control regulations.
The frame and seat rail get revised shape to increase rigidity and balance. Suzuki also redesigned the radiator fin and water hose routing to improve cooling, and gave the bike a new by-pass hose to simplify radiator maintenance.
Changes to the five-speed transmission mirror those on the RM-Z450, and the clutch’s cam release has been revised to make operation lighter.
The RM-Z250 is powered by a 249 cc, fuel-injected, liquid-cooled, four-stroke, single-cylinder, DOHC engine with a compression ratio of 13.5:1, a kick starter and electronic ignition.
Disc brakes front and rear provide the stopping power and the RM-Z250 gets Dunlop MX51 Geomax tires, a 21 incher in front with a 19 inch tire in the rear. With an overall length of 85.4 inches the bike has a wheelbase of 58.1 inches. Seat height is 37.6 inches and the RM-Z250 has 13.6 inches of ground clearance. It’ll hold 1.7 gallons of fuel and has a wet weight of 235 pounds.
The 2013 Suzuki RM-Z250 is available in Champion Yellow with no factory warranty. The base MSRP is $7,599.
2013 Suzuki RM Models
There are two models in the 2013 Suzuki RM lineup. Billed both as Motocross and Kids motorcycles, these bikes mimic the styling cues of the larger RM-Z lineup with dimensions built to inspire confidence and teach necessary skills to smaller and beginning riders.
Both are powered by 84.7 cc, two-stroke, liquid-cooled engines equipped with Keihin carburetors. Fuel to oil premix ratio is 30:1. The Kids bikes each have a kick starter.
RM85L and RM85
The 2013 RM models share a lot of features. Both models have a six-speed transmission designed for a smooth, positive shift feel. The clutch lever has a long stroke for precise shifting and both the brake and shift pedals have a thick cross section for durability and increased foot traction. The gear shift lever tip has a knurl finish for an easier grip.
Showa adjustable, inverted front forks and a solo Showa rear shock absorber provide suspension on each RM model. Both bikes have front and rear hydraulic disc brakes.
The 2013 Suzuki RM85L is built for larger riders. Its seat height is 34.4 inches with a ground clearance of 14 inches. The bigger of the two RM models is 74.6 inches long with a 50.4 inch wheelbase. The RM85L has a 19 inch front tire and 16 inch rear tire. Fuel capacity is 1.3 gallons and wet weight is 163 pounds.
Built for even smaller riders, the 2013 Suzuki RM85 has a seat height of 33.5 inches and 12.8 inches of ground clearance. Wheelbase on the smaller model is 48.8 inches and overall length is 71.1 inches. There’s a 17 inch front tire and 14 inch tire in the rear. The RM85 holds the same 1.3 gallons of fuel and is two pounds lighter than the RM85L, with a wet weight of 161 pounds.
Suzuki offers both bikes in Champion Yellow with no factory warranty. The manufacturer has not announced the MSRP for either the 2013 RM85L or the 2013 RM85.
More On The Suzuki 2013 Models
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