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Sportbikes

2018KTM RC 390

★ 5.0
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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)
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2018 KTM RC 390

vs the 2017
Spec20172018
Dry weight 147.0 kg (324.1 pounds) 149.0 kg (328.5 pounds)
Other years 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 56Agility 86Comfort 45Off-road 15Touring 35Road manners 88
Off-road & trail15%
Cornering92%
City riding78%
Daily riding55%
Touring35%
Two-up25%
Track85%
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 us
At 820mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2018 KTM RC 390, with a cramped knee angle of around 70 degrees and a forward-leaning riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 751-820 mm — Middle Ground →

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Range and running costs

Worked out in your browser - nothing is sent to us

Based on the published US (EPA-style) fuel economy estimate and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine
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 (55.1 US mpg)
EPA CO Emissions
0.6 CO g/km
Engine type
Single, four-stroke
Power/weight ratio
0.2953 HP/kg (dry)
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 201420172018201920222024
Capacity 373 cc 373 cc 373 cc 373 cc 373 cc 373 cc
Dry weight 147 kg 147 kg 149 kg 147 kg 155 kg 155 kg
Seat height 820 mm 820 mm 820 mm 820 mm 824 mm 824 mm
Fuel capacity 10 L 10 L 10 L 10 L 13.7 L 13.7 L

Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.

Rider Reviews

5.0
★★★★★
Rider rating
MotorcycleDB

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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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).

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