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Sportbikes

2023KTM RC 390

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The 2023 KTM RC 390 is a lightweight sport bike designed for beginner and intermediate riders seeking an agile, accessible entry into sportbike riding. Powered by a 373cc single-cylinder engine producing 44 horsepower, it delivers sharp handling and responsive performance ideal for learning track skills and canyon carving. Known for its aggressive styling, affordability, and manageable power delivery, the RC 390 excels as a nimble commuter and weekend warrior machine.

Capacity: 373.2 ccm
Engine: Single, four-stroke
Gearbox: 6-speed
Dry weight: 155.0 kg
Seat height: 824 mm
Power: 44.0 HP (32.1 kW)

⇄ Compare with another bike ＋ Add to garage All model years ⚠ Recalls listed (1)

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

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?

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Your height

Inseam (optional)

Units

At 824mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with balls of both feet on the 2023 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 821-900 mm — Long Legs →

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Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption 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: 97 CO2 g/km
EPA Certificate No.: PKTXC.373EUS-013
EPA Est. Fuel Consumption: 4.15 L/100km (56.7 US mpg)
EPA CO Emissions: 0.4 CO g/km
Torque: 37.0 Nm (3.8 kgf-m)
Engine type: Single, four-stroke
Fuel consumption: 3.50 litres/100 km (28.6 km/l)
Power/weight ratio: 0.2839 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: Wet sump

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Chain
Clutch: PASC™ antihopping clutch, mechanically operated

Dimensions & weight

Wheelbase: 1340 mm
Seat height: 824 mm
Dry weight: 155.0 kg
Fuel capacity: 13.70 litres
Ground clearance: 158 mm

Chassis & suspension

Frame: Steel trellis, powder coated
Front suspension: WP APEX 43
Rear suspension: WP APEX - Monoshock
Front wheel travel: 120 mm
Rear wheel travel: 150 mm
Rake (fork angle): 23.5°

Brakes & wheels

Front brakes: Single disc. ABS. Four-piston calipers.
Front brakes diameter: 320 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: Blue/orange, orange/black
Comments: Small windshield. Cornering ABS. Traction control.

Specs last verified against published sources: October 2026.

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	2019	2022	2023	2024
Capacity	373 cc	373 cc	373 cc	373 cc	373 cc	373 cc
Dry weight	147 kg	147 kg	147 kg	155 kg	155 kg	155 kg
Seat height	820 mm	820 mm	820 mm	824 mm	824 mm	824 mm
Fuel capacity	10 L	10 L	10 L	13.7 L	13.7 L	13.7 L

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

Safety Recalls

⚠ 1 recall may apply

VEHICLE 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.

These recalls cover some 2023 bikes of this model. Whether one applies to a specific bike, and whether the repair has already been done, depends on its VIN — check your VIN with NHTSA or ask a dealer.

Source: NHTSA. View all KTM recalls →

Rider Reviews

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MotorcycleDB

The 2023 KTM RC 390 is an impressive and powerful sport bike that is sure to turn heads on the road. From its sleek design to its advanced technology, this motorcycle has everything a rider could want. The 373cc engine delivers exceptional performance and the lightweight chassis allows for agile handling, making it a joy to ride. With top-notch components and a comfortable riding position, the KTM RC 390 is a fantastic choice for anyone looking for a high-quality sport bike.

Overall, the 2023 KTM RC 390 is a top-of-the-line sport bike that offers a thrilling riding experience. Its combination of power, handling, and style make it a standout choice in its class. Whether you're tearing up the track or cruising down the highway, the KTM RC 390 is sure to impress with its performance and aesthetics. If you're in the market for a new sport bike, this is definitely one to consider.

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