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Adventure Motorcycles

2021KTM 390 Adventure

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The 2021 KTM 390 Adventure is an entry-level adventure bike designed for budget-conscious riders seeking affordable off-road capability and lightweight maneuverability. Powered by a 373cc single-cylinder four-stroke engine producing 43 horsepower, it excels in navigating challenging terrain while remaining easy to handle for newer riders. Known for its accessible price point and genuine dual-sport versatility, it bridges the gap between street and trail riding effectively.

Capacity
373.0 ccm
Engine
Single, four-stroke
Gearbox
6-speed
Dry weight
158.0 kg
Seat height
855 mm
Power
42.9 HP (32.0 kW) @ 9000 RPM
⇄ Compare with another bike + Add to garage All model years

What’s new for the 2021 KTM 390 Adventure

vs the 2020
Spec20202021
Dry weight 148.0 kg (326.3 pounds) 158.0 kg (348.3 pounds)
Other years 2020 2021 2022 2023 2024

How it rides

Editorial estimate from the spec sheet - not lab tested
Speed 52Agility 79Comfort 62Off-road 78Touring 60Road manners 68
Off-road & trail78%
Cornering75%
City riding72%
Daily riding74%
Touring62%
Two-up45%
Track40%
Best for
A versatile single-cylinder adventure bike built for mixed commuting, weekend exploring, and light gravel or trail riding.
Built for
Playful, upright, and eager, with a torquey single-cylinder engine and long-travel suspension that reward a relaxed, adventurous riding style.
Not ideal for
Not ideal for riders seeking high-speed highway cruising, heavy touring with a passenger, or track-focused performance.

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 855mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with tip-toe one foot on the 2021 KTM 390 Adventure, with a moderate knee angle of around 95 degrees and a slightly forward 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

Worked out in your browser - nothing is sent to us

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
373.0 ccm
Power
42.9 HP (32.0 kW) @ 9000 RPM
CO2 Emissions
86 CO2 g/km
EPA Certificate No.
MKTXC.373ADV-011
EPA Est. Fuel Consumption
3.68 L/100km (63.9 US mpg)
EPA CO Emissions
0.3 CO g/km
Torque
37.0 Nm (3.8 kgf-m)
Engine type
Single, four-stroke
Fuel consumption
3.40 litres/100 km (29.4 km/l)
Power/weight ratio
0.2715 HP/kg (dry)
Bore x stroke
89.0 x 60.0 mm
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
1430 mm
Seat height
855 mm
Dry weight
158.0 kg
Wet weight
165.0 kg
Fuel capacity
14.50 litres
Ground clearance
200 mm
Chassis & suspension
Frame
Steel trellis frame, powder coated
Front suspension
WP APEX upside-down Ø 43 mm
Rear suspension
WP APEX monoshock
Front wheel travel
170 mm
Rear wheel travel
177 mm
Rake (fork angle)
26.5°
Trail
110 mm
Brakes & wheels
Front brakes
Single disc. ABS. Four-piston radial fixed calliper.
Front brakes diameter
320 mm
Rear brakes
Single disc. ABS. Single-piston floating calliper.
ABS
Yes
Front tyre
100/90-19
Front Wheel
19.0 in
Rear tyre
130/80-17
Rear Wheel
17.0 in
Other
Color options
Orange/white/grey
Fuel Tank Material
Plastic

Specs last verified against published sources: .

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 20202021202220232024
Capacity 373 cc 373 cc 373 cc 373 cc 373 cc
Dry weight 148 kg 158 kg 158 kg 161 kg 161 kg
Seat height 855 mm 855 mm 855 mm 830 mm 830 mm
Fuel capacity 14.5 L 14.5 L 14.5 L 14.5 L 14.5 L

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

Rider Reviews

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MotorcycleDB

The 2021 KTM 390 Adventure is a versatile and capable motorcycle that is perfect for riders looking for a blend of on-road and off-road capabilities. With a powerful 373cc engine and a lightweight chassis, this adventure bike is built for performance and agility. The comfortable ergonomics and adjustable suspension make it an ideal choice for long journeys on various terrains. The advanced electronics and features such as ride-by-wire throttle and cornering ABS give riders confidence and control in different riding conditions. Overall, the KTM 390 Adventure offers an exciting and dynamic riding experience for both beginners and experienced riders.

In conclusion, the 2021 KTM 390 Adventure is a well-rounded motorcycle that excels in both on-road and off-road performance. With its powerful engine, lightweight chassis, and advanced electronics, this bike is truly a versatile option for adventure enthusiasts. Whether you're tackling long highway stretches or exploring rugged trails, the KTM 390 Adventure delivers an exhilarating and capable ride. If you're in the market for a versatile and capable adventure bike, the 2021 KTM 390 Adventure is definitely worth considering.

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Common questions

What is the engine size of the KTM 390 Adventure?

The 2021 KTM 390 Adventure has a Capacity of 373.0 ccm (22.76 cubic inches).

What engine power does the KTM 390 Adventure have?

The 2021 KTM 390 Adventure has a Power of 42.9 HP (32.0 kW) @ 9000 RPM.

How many gears does the KTM 390 Adventure have?

The 2021 KTM 390 Adventure has a Gearbox of 6-speed.

What is the torque of the KTM 390 Adventure?

The 2021 KTM 390 Adventure has a Torque of 37.0 Nm (3.8 kgf-m or 27.3 ft.lbs).

How much does the KTM 390 Adventure weigh?

The 2021 KTM 390 Adventure has a Dry weight of 158.0 kg (348.3 pounds).

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