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 |
