Sportbikes
2018KTM RC 390
41 fields on record
The 2018 KTM RC 390 is a lightweight, agile middleweight sportbike engineered for riders seeking sharp handling and spirited performance on both road and track. Its compact dimensions, responsive WP suspension, and potent braking system make it ideal for enthusiasts who prioritize precision cornering and everyday rideability. Known for delivering exciting acceleration in a manageable package, the RC 390 represents KTM's commitment to accessible performance for developing riders.
- Capacity
- 373.2 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 149.0 kg
- Seat height
- 820 mm
- Power
- 44.0 HP (32.1 kW)
What’s new for the 2018 KTM RC 390
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Dry weight | 147.0 kg (324.1 pounds) | 149.0 kg (328.5 pounds) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built primarily for spirited cornering, track days, and sharp urban riding rather than long-distance comfort.
- Built for
- A nimble, high-revving single-cylinder sport machine that rewards aggressive throttle and brake inputs with eager, flickable handling.
- Not ideal for
- Not a good fit for riders seeking plush long-haul comfort, pillion-friendly touring, or any serious off-road capability.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 373.2 ccm
- Power
- 44.0 HP (32.1 kW)
- CO2 Emissions
- 100 CO2 g/km
- EPA Certificate No.
- JKTXC.373BAL-011-R01
- EPA Est. Fuel Consumption
- 4.27 L/100km (1004.4 mpg)
- EPA CO Emissions
- 0.6 CO g/km
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.2953 HP/kg
- Bore x stroke
- 89.0 x 60.0 mm
- Compression
- 14.5:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Bosch EMS with RBW
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Semi-dry sump
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, mechanically actuated
Dimensions & weight
- Wheelbase
- 1340 mm
- Seat height
- 820 mm
- Dry weight
- 149.0 kg
- Fuel capacity
- 10.00 litres
- Ground clearance
- 179 mm
Chassis & suspension
- Frame
- Steel trellis frame, powder coated
- Front suspension
- WP upside-down Ø 43 mm
- Rear suspension
- WP Monoshock
- Front wheel travel
- 125 mm
- Rear wheel travel
- 150 mm
- Rake (fork angle)
- 23.5°
Brakes & wheels
- Front brakes
- Single disc. ABS. Four-piston calipers.
- Front brakes diameter
- 300 mm
- Rear brakes
- Single disc. ABS. Floating disc. Single-piston caliper.
- Rear brakes diameter
- 230 mm
- ABS
- Yes
- Front tyre
- 95/75-R17
- Rear tyre
- 115/75-R17
Other
- Color options
- Black/white/orange
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2014 | 2017 | 2018 | 2019 | 2022 | 2024 |
|---|---|---|---|---|---|---|
| Capacity | 373.20 ccm (22.77 cubic inches) | 373.20 ccm (22.77 cubic inches) | 373.20 ccm (22.77 cubic inches) | 373.2 ccm (22.77 cubic inches) | 373.2 ccm (22.77 cubic inches) | 373.2 ccm (22.77 cubic inches) |
| Dry weight | 147.0 kg (324.1 pounds) | 147.0 kg (324.1 pounds) | 149.0 kg (328.5 pounds) | 147.0 kg (324.1 pounds) | 155.0 kg (341.7 pounds) | 155.0 kg (341.7 pounds) |
| Seat height | 820 mm (32.3 inches) | 820 mm (32.3 inches) | 820 mm (32.3 inches) | 820 mm (32.3 inches) | 824 mm (32.4 inches) | 824 mm (32.4 inches) |
| Fuel capacity | 10.00 litres (2.64 gallons) | 10.00 litres (2.64 gallons) | 10.00 litres (2.64 gallons) | 10.00 litres (2.64 US gallons) | 13.70 litres (3.62 US gallons) | 13.70 litres (3.62 US gallons) |
| Color options | Orange/black | Black/white/orange | Black/white/orange | Black/white/orange | Blue/orange, orange/black | Blue/orange, orange/black |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 open recallVEHICLE SPEED CONTROL:THROTTLEMar 2026 · 26V196000
KTM North America, Inc. is recalling certain 2022-2023 390 Duke and 2022-2024 RC 390 motorcycles. Water may enter the throttle (e-throttle) control unit and cause it to fail, resulting in loss of drive power while riding.
Risk: Loss of drive power while riding increases the risk of a crash or injury.
Remedy: KTM will inspect and replace the e-throttle control, free of charge. Owner notification letters were mailed April 30, 2026. Owners may contact KTM customer service at 1-888-985-6090. Vehicle Identification Numbers (VINs) involved in this recall will become searchable on NHTSA.gov March 31, 2026. KTM's number for this recall is KTB2606 & HTB2603. This recall expands previous NHTSA recall number 25V598.
Source: NHTSA. View all KTM recalls →
Rider Reviews
Common questions
What is the engine size of the KTM RC 390?
The 2018 KTM RC 390 has a Capacity of 373.2 ccm (22.77 cubic inches).
What engine power does the KTM RC 390 have?
The 2018 KTM RC 390 has a Power of 44.0 HP (32.1 kW).
How many gears does the KTM RC 390 have?
The 2018 KTM RC 390 has a Gearbox of 6-speed.
How much does the KTM RC 390 weigh?
The 2018 KTM RC 390 has a Dry weight of 149.0 kg (328.5 pounds).
Shop this bike
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The 2018 KTM RC 390 is a thrilling and powerful motorcycle that will satisfy any rider's need for speed. With its 373cc engine, this bike delivers impressive performance on both city streets and open highways. Its lightweight design and agile handling make it a dream to maneuver, while its sleek and sporty styling ensures that you'll turn heads wherever you go. Whether you're a seasoned rider or a beginner looking for an exhilarating experience, the KTM RC 390 is sure to impress with its impressive power and dynamic performance.
Overall, the 2018 KTM RC 390 is a fantastic choice for riders who crave a thrilling and engaging riding experience. Its powerful engine, nimble handling, and stylish design make it a top contender in the sportbike category. From daily commutes to weekend joy rides, this motorcycle delivers on all fronts and is a must-have for any rider looking for a thrilling and dynamic ride.
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