2025 · Supersport · Buyer's Guide
RC 390 (MY2025)
The Featherweight Corner Weapon
The Machine's Character
The RC 390 is built around one idea: a small, hard-edged sportbike that lets a rider work on line, lean, and braking without ever feeling overwhelmed. The 373 cc liquid-cooled single makes 44 hp at 9,000 rpm and 27 lb-ft at 7,000 rpm, and the whole package is light enough that those numbers land harder than they read. Cornering ABS, traction control, and ride modes come standard, as does a slipper clutch, a TFT display, and suspension you can adjust at both ends. That is a genuinely serious spec sheet for a bike this size, and it puts the RC in the sharp end of the small-bore supersport class.
Ridden hard, this thing is all about direction changes. It leans deep, changes line mid-corner without drama, and holds a steady arc at speed instead of running wide. City work is easy, running costs stay low, and the aftermarket support means an owner can keep building on it for years. Who it suits: a rider who wants to sharpen technique on tight, twisting roads or a circuit, not one chasing straight-line speed. That single runs out of breath on a long highway slog, and the riding position is committed. Neither is a flaw, but both are real.
Hard Numbers
Spec sheets don't ride bikes, but they set the baseline.
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| Power | 44 hp (32 kW) @ 9,000 rpm |
|---|---|
| Torque | 27 lb-ft (37 Nm) @ 7,000 rpm |
| Displacement | 373 cc |
| Engine | Single-cylinder |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
Equipment check
Chassis
- Front Suspension Adjustable Standard
- Rear Suspension Adjustable Standard
Connectivity
- TFT Display Standard
- Smartphone Connectivity Optional
Drivetrain
- Quickshifter Optional
- Slipper Clutch Standard
Lighting
- LED Headlight Standard
Safety
- ABS Standard
- Cornering ABS Standard
- Traction Control Standard
- Ride Modes Standard
The Numbers Compared
Compare the technical specifications of the KTM RC 390 with other bikes in its class.
Head-to-head: KTM RC 390 vs. its rivals
Power
Torque
Displacement
What's new versus the previous generation
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2022–2024
KTM RC 390 (MY2022)
The A2 Corner Carver
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