Yamaha WR 125R (2011-12)
The Yamaha WR 125R is a motorcycle model with a four-stroke, forward-inclined single-cylinder, DOHC, 4-valve engine that has a capacity of 124.7. The bike’s cooling system is liquid-cooled, and its compression ratio is 11.2:1. The lubrication system is a wet sump, and the bike is fuel-injected. The bike starts electrically and has a maximum power output of 10.9 kW / 15 hp at 9000 rpm. The maximum torque output is 12.2 Nm / 1.24 kgf-m at 6000 rpm. The bike has a wet, multiple coil spring clutch and a 5-speed transmission. The final drive is a chain, and the bike’s gear ratios are 1st 70/30 (2.333), 2nd 46/15 (3.067), 3rd 33/16 (2.063), 4th 30/19 (1.579), 5th 34/27 (1.259), and 6th 25/24 (1.042). The frame is a steel double-cradle, and the front suspension is a telescopic fork with 210 mm / 8.2 in wheel travel. The rear suspension is a swinging arm link suspension with 230 mm / 9.0 in of wheel travel. The front and rear brakes are single 248mm disc and 220mm disc respectively. The front and rear tires are 80/90-21 and 110/80-18. The bike has a rake angle of 27 degrees and a trail of 107 mm / 4.2 in. Its wheelbase is 1430 mm / 56.3 in, and its seat height is 930 mm / 36.6 in. The wet weight of the bike is 133 kg / 293.2 lbs, and its fuel capacity is 8.5 liters / 2.2 US gal.
Technical specifications:
Make Model: Yamaha WR 125R
Year: 2011 – 12
Engine: Four stroke, forward inclined single cylinder, DOHC, 4 valve
Capacity: 124.7
Bore x Stroke: 52 x 58.6 mm
Cooling System: LLiquid cooled
Compression Ratio: 11.2:1
Lubricatin: Wet sump
Induction: Fuel injection
Ignition: TCI
Starting: Electric
Max Power: 10.9 kW / 15 hp @ 9000 rpm
Max Torque: 12.2 Nm / 1.24 kgf-m @ 6000 rpm
Clutch: Wet, multiple coil spring
Transmission: 5 Speed
Final Drive: Chain
Gear Ratio: 1st 70/30 (2.333) 2nd 46/15 (3.067) 3rd 33/16 (2.063) 4th 30/19 (1.579) 5th 34/27 (1.259) 6th 25/24 (1.042)
Frame: Steel double cradle
Front Suspension: Telescopic fork
Front Wheel Travel: 210 mm / 8.2 in
Rear Suspension: Swinging arm link suspension
Rear Wheel Travel: 230 ,mm / 9.0 in
Front Brakes: Single 248mm disc
Rear Brakes: Single 220mm disc
Front Tyre: 80/90-21
Rear Tyre: 110/80-18
Rake: 27 degrees
Trail: 107 mm / 4.2 in
Wheelbase: 1430 mm / 56.3 in
Seat Height: 930 mm / 36.6 in
Wet Weight: 133 kg / 293.2 lbs
Fuel Capacity: 8.5 Litres / 2..2 US gal
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