Cool-Motorcycles reviews Suzuki RM-Z250 2009

suzuki-rmz250

The RM-Z250 features a compact, lightweight and powerful 250cc 4-stroke engine design, a strong and lightweight aluminum chassis, Showa suspension components and many high-performance features for the ultimate 250cc 4-stroke racing machine.

The RM-Z250 engine is based around an over-square bore x stroke design, with liquid-cooling, titanium valves and double overhead billet cams. The engine is housed by a lightweight, twin-spar aluminum-alloy frame combining aluminum forgings, extrusions and stampings welded into a single unit. The whole package is supported by a Showa inverted, twin-chamber, cartridge fork and Showa remote reservoir rear shock.

The RM-Z250 features a unique aluminum rear swingarm built using hydro-formed, thick-wall tapered arms welded to a cast linkage bracket and forged axle holders. Other features include Dunlop tires mounted on lightweight aluminum rims with a special spoke/nipple design, plus Renthal aluminum handlebars as standard equipment.

Included with this year’s new model are all the benefits of Suzuki’s race contingency, trackside support, Tony D School and Good scholar program. All these added benefits are exclusive to Suzuki riders.

The RM-Z250: it’s taking the four-stroke world by storm!

Engine Features

• KEIHIN FCR37MX Carburetor with bat-wing type air guide plates delivers better mid-to-high power output while improving low throttle opening response
• Compact 249cc, 4-stroke, liquid-cooled, DOHC, 4-valve engine – designed for maximum performance and light weight
• Advanced 4-valve cylinder head design with narrow included valve angle and titanium valves, plus new pent roof combustion chamber design for improved combustion efficiency
• Lightweight aluminum cylinder with Suzuki Composite Electrochemical Material (SCEM) plating for increased durability, efficient heat transfer and weight reduction
• Strong, reinforced airbox designed for durability and secure intake seal
• Hot starter on the right hand side of the handlebar just like Ricky Carmichael’s Championship winning RM-Z450.
• Automatic decompression system for easy kick starting
• The Suzuki Advanced Sump System (SASS) features separate oil chambers for the transmission and crankshaft using the transmission as the oil sump, allowing low crankshaft placement, reduced engine height and a low center of gravity

Chassis Features

• Twin spar aluminum alloy frame is designed for strength and ample shock-absorption feel, contributes to agile handling and performance through the whoops
• Swingarm with lightweight construction for efficient traction, especially over the whoops
• Gripper seat with projected cross-shaped patterns on top surface provides additional grip
• Showa cartridge-style front fork with 47mm inner tube, plus 22 -way compression damping and 12.2 inches of wheel travel
• Showa piggyback-reservoir rear shock absorber for excellent controlled feel and increased bottoming resistance
• Gold-colored chain and axle blocks give a full factory look
• Race inspired disc rotors provide better cooling performance and increased mud deflection in muddy conditions.
• Foot pegs include optimized clearance between the mounting bracket and footrest to prevent mud from caking up
• Renthal tapered aluminum handlebars with Renthal-labeled handlebar pad for reduced vibration and improved rider feel
• On-the-fly clutch lever adjuster mounted to the clutch lever perch for rider convenience

Specs

• Engine : 4-stroke, liquid-cooled, DOHC
• Bore Stroke : 77.0 mm (3.03 in) x 53.6 mm (2.11 in)
• Compression Ratio : 13.4 : 1
• Fuel System : KEIHIN FCR37MXS
• Lubrication : Semi-dry sump
• Ignition : Electronic ignition (CDI)
• Transmission : 5-speed constant mesh
• Final Drive : D.I.D 520DMA2, 112 links
• Overall Length : 2165 mm (85.2 in)
• Overall Width : 830 mm (32.7 in)
• Overall Height : 1260 mm (49.6 in)
• Seat Height : 955 mm (37.6 in)
• Ground Clearance : 350 mm (13.8 in)
• Wheelbase : 1465 mm (57.7 in)
• Curb Weight : 102 kg (225 lbs)
• Suspension Front : Telescopic, coil spring, oil damped
• Suspension Rear : Swingarm type
• Brakes Front : Disc brake
• Brakes Rear : Disc brake
• Tires Front : 80/100-21 51M, tube type
• Tires Rear : 100/90-19 57M, tube type
• Fuel Tank Capacity : 7.0 L (1.8/1.5 US/Imp gal)
• Color : Champion Yellow No. 2

Suzuki Motocross Motorcycles
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Cool-Motorcycles reviews Suzuki RM-Z250 2009