Segment: Enduro/Offroad
Production years: 2003, 2004
The 2004 MY RM250 has received several revisions aimed at improving the power delivery. A lighter flat-top piston, redesigned exhaust ports, and piston rings have been used, and the carburetor was rejetted, also. At the same time the fork grew thicker, with new shocks and a new rear linkage for better progressive action.
Ergonomics have been tweaked, alongside the brakes, and the bike got a stronger frame and better clutch cable adjustment.
engine specs | Type: | two-stroke, single cylinder, liquid-cooled, AETC, crankcase reed | Displacement: | 249 cm3 | Bore X Stroke: | 2.6x2.8 in OR 66 mm | Compression Ratio: | 8.8-10.6:1 | Horsepower: | 55/8000 KW(hp)/RPM | Torque: | 37/7500 lb-ft/RPM OR 50/7500 Nm/RPM | Fuel System: | Keihin PWK38S carburetor |
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transmission specs | Gearbox: | 5 speed, manual | Clutch: | Wet multi-disc, manual | Primary Drive: | - | Final Drive: | Chain |
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chassis specs | Frame: | Steel | Front Suspension: | Telescopic, 22 compression and 20 rebound settings, 12.2 inches (310 mm) of wheel travel | Rear Suspension: | Link-type, spring preload fully-adjustable, 4 high-speed, 16 low-speed compression settings, 19 rebound settings, 12.6 inches (320 mm) of wheel travel | Front Brake: | Single hydraulic disc, 2-piston caliper | Rear Brake: | Single hydraulic disc, 1-piston caliper |
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dimension specs | Overall Length: | 85.6 in OR 2174 mm | Overall Width: | 33.1 in OR 841 mm | Seat Height: | 37.4 in OR 950 mm | Wheelbase: | 57.9 in OR 1471 mm | Ground Clearance: | 13.8 in OR 351 mm | Weight: | 211 lbs OR 96 kg | Fuel Capacity: | 2.1 gallons OR 7.9 L |
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tyres specs | Front: | 80/100-21 51M | Rear: | 110/90-19 62M |
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