Comparing the Aprilia SXR 125 and the KTM RC 390 side by side helps you weigh how each motorcycle fits your riding needs before you decide. On the engine front, the Aprilia SXR 125 comes with a 124.45 cc unit compared to the KTM RC 390's 373.27 cc, producing 9.61 PS @ 7500 RPM and 43.5 PS @ 9000 rpm respectively. Fuel efficiency stands at 40 kmpl for the Aprilia SXR 125 versus 29 kmpl for the KTM RC 390. The full specification, pricing and feature breakdown for both motorcycles is available in the table below.
| Specification | ||
|---|---|---|
Engine Specifications |
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| Cooling System | Air‑cooled | Liquid cooling. Curved radiator with fans for better heat management |
| Displacement | 124.45 cc | 373.27 cc |
| Engine Type | Single‑cylinder, 4‑stroke, SOHC, 3‑valve, air‑cooled. | Single Cylinder, Liquid Cooled, DOHC, FI Engine |
| Power | 9.61 PS @ 7500 RPM | 43.5 PS @ 9000 rpm |
| Torque | 10.19 Nm @ 5400 rpm | 37 Nm @ 7000 rpm |
Performance & Efficiency |
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| Fuel Tank Capacity | 7 L | 13.7 L |
| Mileage | 40 kmpl | 29 kmpl |
Dimensions & Weight |
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| Kerb Weight | 129 | 172 |
| Seat Height | 775 | 835 |
Brakes & Suspension |
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| ABS | No, CBS | Dual Channel ABS |
| Front Brake | Ø 220 mm disk brake with combi braking system (CBS) | 320 mm Disc with Radially mounted calliper |
| Front Suspension | Hydraulic double‑telescopic fork | WP APEX USD forks, 43 mm diameter |
| Rear Brake | Ø 140 mm drum brake | 230 mm Disc with Floating calliper |
| Rear Suspension | Hydraulic shock absorber | WP APEX Monoshock, 10 step adjustable |
Tyres & Wheels |
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| Front Tyre | 120/70‑12 | 110/70 - 17 |
| Rear Tyre | 120/70‑12 | 150/60 - 17 |
| Tyre Type | Tubeless | Tubeless |
| Wheel Type | Alloy | Alloy |
Features & Technology |
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| Headlight | LED | LED Headlamp |
Other Specifications |
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| Battery | 12 V, 5 Ah | 12 V, 8 AH MF battery |
| Bike Image 1 |
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| Bike Image 2 |
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| Bike Image 3 |
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| Cluster | Fully digital, LCD | TFT Multifunction display |
| Color Options | VIBRANT BLUEESSENCE WHITEENIGMA BLACKPOWER RED | OrangeBlueGP Edition BlueGP Edition Orange |
| Fuel System | Electronic fuel injection | Electronic Fuel Injection |
| Price Variants | STD | 121907 | GP Edition | 322719 STD | 323068 |
| Starter | Kick + Electric | Self Start Only |
| Transmission | Automatic | 6 Speed Manual |











