Aprilia RS 125 2021 specs
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| Displacement | 124.80 ccm (7.62 cubic inches) |
| Engine Details | Single cylinder, two-stroke |
| Compression | 12.5:1 |
| Bore X Stroke | 54.0 x 54.5 mm (2.1 x 2.1 inches) |
| Fuel System | Carburettor. DellโOrto VHST 28 |
| Ignition | Electronic CDI ignition. |
| Lubrication System | Separate mixing with variable displacement, volumetric pump. |
| Cooling System | Liquid |
| Gearbox | 6-speed |
| Transmission Type Final Drive | Chain |
| Clutch | Multi-plate in oil bath. |
| Power | 14.75 HP (10.8 kW)) |
| Engine Type | Read valve intake. |
| Driveline | Primary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35). |
| Emission Details | Euro 4 |
| Torque | 15.00 Nm (1.5 kgf-m or 11.1 ft.lbs) @ 6250 RPM |
| Top Speed | 120.0 km/h (74.6 mph) |
| Fuel Consumption | 0.52 litres/100 km (192.3 km/l or 452.35 mpg) |
| Greenhouse Gases | 12.1 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Valves Per Cylinder | 4 |
| Front Brakes | Single disc. ABS. Stainless steel disc with radial 4 piston calliper |
| Front Brakes Diameter | 300 mm (11.8 inches) |
| Front Suspension | Upside down hydraulic fork, 40 mm. |
| Front Tyre | 100/80-ZR17 |
| Front Wheel Travel | 110 mm (4.3 inches) |
| Rear Brakes | Single disc. Stainless steel disc and calliper with single 30 mm piston. |
| Rear Brakes Diameter | 218 mm (8.6 inches) |
| Rear Suspension | Asymmetrical swingarm, monoshock absorber |
| Rear Tyre | 140/70-ZR17 |
| Rear Wheel Travel | 120 mm (4.7 inches) |
| Wheels | Aluminium alloy rims |
| Frame Type | Sloping twin-spar frame in thin wall box section cast aluminium, with reinforcement cross-ribbing. |
| Overall Length | 1,955 mm (77.0 inches) |
| Overall Width | 720 mm (28.3 inches) |
| Fuel Capacity | 14.50 litres (3.83 US gallons) |
| Overall Height | 1135 mm (44.7 inches) |
| Reserve Fuel Capacity | 3.50 litres (0.92 US gallons) |
| Seat Height | 820 mm (32.3 inches) If adjustable, lowest setting. |
| Weight Incl Oil Gas Etc | 144.0 kg (317.5 pounds) |
| Dry Weight | 185.0 kg (407.9 pounds) |
| Power Weight Ratio | 0.1056 HP/kg |
| Front Percentage Of Weight | 49.3 |
| Color Options | Red, blue, black |
| Starter | Electric |
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