The Moto Ref
KTMsupersport

RC 390

373.2 cc / 44 hp / 172 kg / 2025

KTM RC 390 2025

A track-day tool with a licence-friendly power figure.

56.7/ 100

Scored within supersport, methodology here

€6,899

list price

power
44 hp
wet weight
172 kg
tank range
403 km

The short version

The RC 390 is the racier way to spend A2 money at KTM. Adjustable WP suspension, a big 320 mm brake and cornering electronics make it the most serious track proposition in the class, though its single cylinder gives away top-end to the twin-cylinder rivals.

Where it wins

  • Adjustable suspension and cornering ABS are rare at this price
  • Aggressive riding position that actually works on track
  • Big single delivers usable torque low in the rev range

Where it loses

  • Heavier than the Duke it is based on
  • Twins like the RS 457 pull harder up top
  • Committed ergonomics get old in traffic

Score breakdown

Engine and performance

6.3 / 25

Handling and chassis

14.3 / 20

Value

13.3 / 20

Practicality

7.5 / 15

Technology

8.3 / 10

Reliability and ownership

7.0 / 10
Advertisement320 x 100

Full specs

Full specifications: KTM RC 390
Engine
EngineSingle cylinder, liquid cooled, DOHC
Displacement373.2 cc
Power44 hp at 9,000 rpm
Torque37 Nm at 7,000 rpm
Power to weight0.26 hp/kg
Chassis
Wet weight172 kg
Front suspensionWP APEX 43 mm open cartridge, 120 mm
Front adjustabilityCompression and rebound
Rear suspensionWP APEX monoshock, 150 mm
Rear adjustabilityPreload and rebound
Front brake320 mm, radial 4-piston
ABSCornering ABS
Dimensions
Seat height835 mm
Wheelbase1355 mm
Fuel capacity13.7 L
Claimed consumption3.4 L/100 km
Fuel range403 km
Ownership
Price€6,899
Service interval10,000 km
Valve check20,000 km
Warranty2 years
Equipment
DashTFT
Ride modesYes
Traction controlYes
QuickshifterOptional
Cruise controlNot available
ConnectivityYes
Full maintenance guide: schedule, intervals and costs

Compare the RC 390

Aprilia RS 457vsKTM RC 390

47.6 hp vs 44 hp / 175 kg vs 172 kg

Parts and upgrades for the RC 390

Upgrades owners actually fit, at typical retail prices. Shop links are affiliate links: buying through them supports the site and costs you nothing extra.

KTM PowerParts

Performance

Quickshifter+

Factory clutchless shifts both ways. The one options box worth ticking.

€389typical price

R&G

Protection

Aero Crash Protectors

Saves the cases in a car park drop, pays for itself the first time.

€95typical price

Evotech Performance

Styling

Tail Tidy

Deletes the mudflap and moves the plate tight to the tail.

€105typical price