Yamaha YZF-R125 2021 specs
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| Displacement | 124.70 ccm (7.61 cubic inches) |
| Engine Details | Single cylinder, four-stroke |
| Power | 14.75 HP (10.8 kW)) |
| Torque | 12.24 Nm (1.2 kgf-m or 9.0 ft.lbs) |
| Compression | 11.2:1 |
| Bore X Stroke | 52.0 x 58.6 mm (2.0 x 2.3 inches) |
| Valves Per Cylinder | 4 |
| Fuel System | Injection. EFI |
| Ignition | TCI |
| Lubrication System | Wet sump |
| Cooling System | Liquid |
| Gearbox | 6-speed |
| Transmission Type Final Drive | Chain |
| Clutch | Wet, multiple-disc coil spring |
| Driveline | Constant mesh |
| Fuel Consumption | 2.13 litres/100 km (46.9 km/l or 110.43 mpg) |
| Greenhouse Gases | 49.4 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Emission Details | Dual catalysers |
| Frame Type | Steel deltabox frame |
| Front Brakes | Single disc |
| Front Brakes Diameter | 292 mm (11.5 inches) |
| Front Suspension | Telescopic forks |
| Front Tyre | 100/80-17 |
| Front Wheel Travel | 130 mm (5.1 inches) |
| Rake | 25.0° |
| Rear Brakes | Single disc |
| Rear Brakes Diameter | 230 mm (9.1 inches) |
| Rear Suspension | Linked monoshock with spring preload adjustment |
| Rear Tyre | 130/70-17 |
| Rear Wheel Travel | 114 mm (4.5 inches) |
| Trail | 89 mm (3.5 inches) |
| Wheels | Y-shape spokes |
| Fuel Capacity | 11.50 litres (3.04 gallons) |
| Ground Clearance | 155 mm (6.1 inches) |
| Oil Capacity | 1.20 litres (0.08 quarts) |
| Overall Height | 970 mm (38.2 inches) |
| Overall Length | 2,015 mm (79.3 inches) |
| Overall Width | 660 mm (26.0 inches) |
| Seat Height | 818 mm (32.2 inches) If adjustable, lowest setting. |
| Weight Incl Oil Gas Etc | 140.0 kg (308.6 pounds) |
| Dry Weight | 126.5 kg (278.9 pounds) |
| Power Weight Ratio | 0.1166 HP/kg |
| Color Options | Grey, Blue, Red |
| Starter | Electric |
| Instruments | Multi function LCD instruments |
| Comments | ABS brakes adds 2 kg. |
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