Segment: Trial
Production years: 2004, 2005
In 2004, the Japanese motorcycle manufacturer launched the Yamaha XT 660X, a motorcycle produced alongside the XT 660R racing motorcycle. Both motorcycles packed the same engine and shared some chassis components.
The bike was fitted with standard features, such as a high-mounted front fender, a single headlight, a small front cowl with a tiny windscreen, a one-piece dual seat with passenger grab handles, a dual exhaust system with a silencer on each side, and wire-spoke wheels with road tires.
The bike was built around a steel tubular diamond frame with a 43 mm telescopic fork on the front end, providing 225 mm of travel, and a monocross suspension system on the rear, delivering 200 mm of travel.
In the braking department, the XT 660X had installed a 320 mm disc grabbed by a four-piston caliper on the front wheel and a 245 mm disc managed by a single-piston caliper on the rear wheel, delivering optimum braking performance.
In the performance department, the 2004 Yamaha XT 660X had installed a 659cc four-stroke liquid-cooled single-cylinder engine managed by a fuel injection system. As for the power figures, the power unit provided 48 hp with a peak force at 6,000 rpm and 58 Nm (43 lb-ft) torque at 5,250 rpm.
The power produced by the engine was sucked into a five-speed manual transmission with a wet multi-plate clutch and sent to the rear end through a final chain drive.
engine specs | Type: | Liquid-cooled, Single Cylinder, 4-stroke | Displacement: | 659 cm3 | Bore X Stroke: | 4x3.3 in OR 102 mm | Compression Ratio: | 10:1 | Horsepower: | 48/6000 KW(hp)/RPM | Torque: | 43.1/5250 lb-ft/RPM OR 58/5250 Nm/RPM | Fuel System: | Electronic Injection |
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transmission specs | Gearbox: | 5-Speed | Clutch: | Wet multi-plate | Primary Drive: | - | Final Drive: | Chain |
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chassis specs | Frame: | Steel tubular diamond frame with dual tank rails | Front Suspension: | Telescopic Fork | Rear Suspension: | Monocross With Linkage | Front Brake: | Single 320 Mm With 4-piston Calipers | Rear Brake: | Single 245 Mm Disc With 2-piston Calipers |
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dimension specs | Overall Length: | 83.9 in OR 2131 mm | Overall Width: | 33.9 in OR 861 mm | Seat Height: | 34.4 in OR 874 mm | Wheelbase: | 58.5 in OR 1486 mm | Ground Clearance: | 7.9 in OR 201 mm | Weight: | 381 lbs OR 173 kg | Fuel Capacity: | 4 gallons OR 15.1 L |
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tyres specs | Front: | 120/70-17 | Rear: | 160/60-17 |
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power system specs | Power pack: | - | Nominal Capacity: | - | Maximum Capacity: | - | Charger type: | - | Charging time (normal): | - | Charging time (quick): | - | Range: | - |
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