Naked Motorcycles
2018KTM 690 Duke
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The 2018 KTM 690 Duke is a lightweight, agile naked bike designed for riders seeking sharp handling and approachable performance. Known for its nimble character and composed chassis, it excels in urban environments and twisty roads where its 148.5 kg frame and responsive WP suspension shine. The single-cylinder engine delivers engaging everyday thrills with excellent fuel efficiency and manageable power delivery for both novice and experienced riders.
- Capacity
- 693.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 6-speed
- Dry weight
- 148.5 kg
- Seat height
- 835 mm
- Power
- 72.0 HP (53.7 kW) @ 8000 RPM
What’s new for the 2018 KTM 690 Duke
vs the 2017| Spec | 2017 | 2018 |
|---|---|---|
| Front brakes | Single disc. ABS. Floating disc. Four-piston calipers. Radially mounted. | Single disc. ABS. Brembo. Floating disc. Four-piston calipers. Radially mounted. |
| Rear brakes | Single disc. ABS. Floating disc. Single-piston caliper. | Single disc. ABS. Brembo. Floating disc. Single-piston caliper. |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- A sharp, minimalist streetfighter built for backroad carving, spirited city blasts and quick B-road runs rather than long-haul mileage.
- Built for
- A single-cylinder hooligan: torquey thumper punch, razor-sharp handling and no-nonsense KTM attitude packed into a featherweight trellis chassis.
- Not ideal for
- Not for tourers, two-up cruisers, or riders wanting all-day comfort, a low seat, or smooth long-distance highway manners.
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
- 693.0 ccm
- Power
- 72.0 HP (53.7 kW) @ 8000 RPM
- CO2 Emissions
- 90 CO2 g/km
- EPA Certificate No.
- JKTXC0.69EU4-006
- EPA Est. Fuel Consumption
- 3.85 L/100km (61.1 US mpg)
- EPA CO Emissions
- 1.3 CO g/km
- Torque
- 74.0 Nm (7.5 kgf-m)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.4848 HP/kg (dry)
- Bore x stroke
- 105.0 x 80.0 mm
- Compression
- 11.8:1
- Cooling system
- Liquid
- Fuel system
- Injection
- Starting
- Electric
- Ignition
- Keihin EMS with RBW, twin ignition
- Aspiration
- Naturally aspirated
- Valves per cylinder
- 4
- Lubrication system
- Semi-dry-sump lubrication with 2 rotor pumps
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- APTC slipper clutch, hydraulically actuated
Dimensions & weight
- Wheelbase
- 1466 mm
- Seat height
- 835 mm
- Dry weight
- 148.5 kg
- Fuel capacity
- 14.00 litres
- Ground clearance
- 192 mm
Chassis & suspension
- Frame
- Chromium-Molybdenum steel trellis frame, powder coated
- Front suspension
- WP upside-down Ø 43 mm
- Rear suspension
- WP shock absorber with Pro-Lever linkage
- Front wheel travel
- 135 mm
- Rear wheel travel
- 135 mm
- Rake (fork angle)
- 26.5°
- Trail
- 115 mm
Brakes & wheels
- Front brakes
- Single disc. ABS. Brembo. Floating disc. Four-piston calipers. Radially mounted.
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc. ABS. Brembo. Floating disc. Single-piston caliper.
- Rear brakes diameter
- 240 mm
- ABS
- Yes
- Front tyre
- 120/70-17
- Rear tyre
- 160/60-17
Other
- Color options
- 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 | 2008 | 2011 | 2014 | 2016 | 2018 | 2019 |
|---|---|---|---|---|---|---|
| Capacity | 654 cc | 654 cc | 690 cc | 693 cc | 693 cc | 690 cc |
| Dry weight | 149 kg | 149 kg | 150 kg | 150 kg | 149 kg | 149 kg |
| Seat height | 865 mm | 865 mm | 835 mm | 835 mm | 835 mm | 835 mm |
| Fuel capacity | 13.5 L | 13.5 L | 13.8 L | 14 L | 14 L | 14 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Safety Recalls
⚠ 1 recall may applyPOWER TRAIN:CLUTCH ASSEMBLY:SLAVE CYLINDEROct 2021 · 21V792000
KTM North America, Inc. (KTM) is recalling certain 2018-2020 690 Enduro R, Vitpilen 701, 701 Enduro, 701 Supermoto, 2019-2020 690 SMC R, Svartpilen, 2018-2019 690 Duke, and 2020 701 Enduro LR motorcycles. The bellow-style gasket on the clutch slave cylinder may have been damaged during manufacturing, which could cause the clutch to become inoperable and not disengage when the clutch lever is pulled in.
Risk: An inoperable clutch increases the risk of a crash.
Remedy: Dealers will inspect the clutch slave cylinder and replace it if necessary, free of charge. Owner notification letters are expected to be mailed December 3, 2021. Owners may contact KTM customer service at 1-888-985-6090. KTM's numbers for this recall are KTB2112 and HTB2110.
These recalls cover some 2018 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
Common questions
What is the engine size of the KTM 690 Duke?
The 2018 KTM 690 Duke has a Capacity of 693.0 ccm (42.29 cubic inches).
What engine power does the KTM 690 Duke have?
The 2018 KTM 690 Duke has a Power of 72.0 HP (53.7 kW) @ 8000 RPM.
How many gears does the KTM 690 Duke have?
The 2018 KTM 690 Duke has a Gearbox of 6-speed.
What is the torque of the KTM 690 Duke?
The 2018 KTM 690 Duke has a Torque of 74.0 Nm (7.5 kgf-m or 54.6 ft.lbs).
How much does the KTM 690 Duke weigh?
The 2018 KTM 690 Duke has a Dry weight of 148.5 kg (327.4 pounds).
Shop this bike
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The 2018 KTM 690 Duke motorcycle is a powerful and agile bike that offers a thrilling riding experience. With its 690cc single-cylinder engine and lightweight design, the Duke delivers impressive performance and nimble handling. Whether you're cruising through city streets or carving through winding roads, this bike offers a responsive and dynamic ride. The Duke's sleek and modern styling, along with its advanced features such as ABS brakes and ride modes, make it a standout choice for riders looking for a versatile and exciting machine.
Overall, the 2018 KTM 690 Duke motorcycle is a top contender in the mid-size bike category, offering a potent combination of power, agility, and advanced features. Its strong performance and responsive handling make it a joy to ride, while its modern design and advanced technology set it apart from the competition. Whether you're a seasoned rider or a newcomer to the sport, the Duke's impressive capabilities are sure to satisfy your craving for a thrilling and enjoyable riding experience.
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