2009 KTM 690 Duke Specifications

Name: 2009 KTM 690 Duke
Brand: KTM

Sport • Specs last verified 13 July 2026

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2009 KTM 690 Duke Overview

KTM 690 Duke is a sport motorcycle, displacing 653.7 cc. Power comes from a Four stroke, single cylinder, SOHC, 4 valves engine, a compression ratio of 11.8:1. On the performance side, it delivers 46 kW @ 7500 rpm of peak power and 65 Nm @ 6550 rpm of torque. On the road, the 2009 690 Duke tips the scales at 148.5 kg, carries a 13.5-litre fuel tank, offers a seat height of 865 mm and spans a 1472 mm wheelbase. That's roughly 54.2 kg lighter than the average sport motorcycle in our database. The full 2009 KTM 690 Duke spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2009 690 Duke - Pros & Cons

Strengths

Strong power output: With 46 kW @ 7500 rpm and 65 Nm @ 6550 rpm of torque on tap, the 690 Duke is no slouch for its class.

Considerations

Tall seat height: At 865 mm, shorter riders will likely be on tiptoes at a standstill - worth sitting on one before you buy.
Chain final drive upkeep: Budget time for routine chain maintenance - it's cheap to replace but needs consistent attention to avoid premature sprocket wear.

Wear Points & Servicing Notes

Cooling system servicing

690 Duke's Liquid Cooled setup is low-maintenance provided the coolant interval is kept - old, acidic coolant is the main cause of long-term corrosion in the water passages.

Brake disc and pad wear

Braking up front comes from Single 320 mm floating disc, radially screwed four-piston brake caliper - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.

Suspension condition on used examples

The 690 Duke's suspension runs WP Upside-down forks, 4860 ROMA at the front. The rear uses WP monoshock, 4618 with Pro-lever deflector. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The 690 Duke uses chain final drive, which is cheap to replace but needs regular cleaning, lubrication and tension checks to get a full service life out of the sprockets.

Frame & chassis check

Built around a Chromoly trellis frame, powder-coated, aluminium sub frame, the 690 Duke's chassis is straightforward to inspect: look for corrosion, cracks or repair welds around stress points like the head-stock and swingarm mounts.

690 Duke - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2009 KTM 690 Duke, cover the fundamentals: service book and oil change history, chain and sprocket wear, and any sign of oil weeping around the casings. Cold-starting it yourself tells you a lot - a healthy 690 Duke should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects a 690 Duke's engine like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.

Carburetor upkeep

Deposits in the carbs are the usual culprit behind poor running on a stored 690 Duke - strip and clean the float bowls before the first start. Pilot jets clog first and get overlooked most, so make a point of checking them.

2009 KTM 690 Duke - Frequently Asked Questions

What engine does the 2009 KTM 690 Duke have?

The 2009 KTM 690 Duke uses a Four stroke, single cylinder, SOHC, 4 valves engine with 653.7 cc of displacement. It is liquid cooled.

How much does the 2009 KTM 690 Duke weigh?

The 2009 KTM 690 Duke weighs 148.5 kg. This is the manufacturer's dry figure.

How much power does the 2009 KTM 690 Duke make?

The 2009 KTM 690 Duke produces 46 kW @ 7500 rpm of power and 65 Nm @ 6550 rpm of torque. These are peak figures.

What is the fuel tank capacity of the 2009 KTM 690 Duke?

The 2009 KTM 690 Duke has a 13.5-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 225-270 km between stops.

Is the 2009 KTM 690 Duke suitable for shorter riders?

The 2009 KTM 690 Duke has a seat height of 865 mm. This is towards the tall end of the spectrum and will require most riders under 175 cm to tiptoe at stops.

What brakes does the 2009 KTM 690 Duke have?

The 2009 KTM 690 Duke uses Single 320 mm floating disc, radially screwed four-piston brake caliper at the front and Single 240 mm floating disc, single piston caliper at the rear.

What tyre sizes does the 2009 KTM 690 Duke use?

The 2009 KTM 690 Duke runs 120/70 - R17 front and 160/60 - R17 rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2009 KTM 690 Duke have?

The 2009 KTM 690 Duke is fitted with a 6 Speed transmission.

KTM 690 Duke Spec Evolution

The KTM 690 Duke was produced across 11 model years (2008-2018). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.

Specification	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018
Max Power	46 kW / 65 hp @ 7500 rpm	46 kW / 65 hp @ 7500 rpm	46 kW / 65 hp @ 7500 rpm	46 kW / 65 hp @ 7500 rpm	52.2 kW / 70 hp @ 7500 rpm	52.2 kW / 70 hp @ 7500 rpm	52.2 kW / 70 hp @ 7500 rpm	52.2 kW / 70 hp @ 7500 rpm	54.4 kW / 74 hp @ 8000 rpm	54.4 kW / 74 hp @ 8000 rpm	54.4 kW / 74 hp @ 8000 rpm
Dry Weight	148.5 kg / 327 in	148.5 kg / 327 in	148.5 kg / 327 in	148.5 kg / 327 in	149.5 kg / 330 in	149.5 kg / 330 in	149.5 kg / 330 in	149.5 kg / 330 in	148.5 kg / 327.4 lbs	148.5 kg / 327.4 lbs	148.5 kg / 327.4 lbs
Engine Detail	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Four stroke, single cylinder, SOHC, 4 valves	Single cylinder, 4-stroke, SOHC, 4-valve	Single cylinder, 4-stroke, SOHC, 4-valve	Single cylinder, 4-stroke, SOHC, 4-valve
Seat Height	865 mm / 34 in	865 mm / 34 in	865 mm / 34 in	865 mm / 34 in	835 mm / 32.9 in	835 mm / 32.9 in	835 mm / 32.9 in	835 mm / 32.9 in	835 mm / 32.9"	835 mm / 32.9"	835 mm / 32.9"
Fuel Capacity	13.5 Litres / 3.6 US gal / 3.0 Imp gal	13.5 Litres / 3.6 US gal / 3.0 Imp gal	13.5 Litres / 3.6 US gal / 3.0 Imp gal	13.5 Litres / 3.6 US gal / 3.0 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal	14 Litres / 3.7 US gal / 3.1 Imp gal
Frame Type	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chromoly trellis frame, powder-coated, aluminium sub frame	Chrome-moly steel Trellis frame, aluminum powder coated sub-frame	Chrome-moly steel Trellis frame, aluminum powder coated sub-frame	Chrome-moly steel Trellis frame, aluminum powder coated sub-frame
Displacement	653.7 cc / 39.91 cu in	653.7 cc / 39.91 cu in	653.7 cc / 39.91 cu in	653.7 cc / 39.91 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in	690 cc / 42.1 cu in
Wheelbase	1472 mm / 57.9 in	1472 mm / 57.9 in	1472 mm / 57.9 in	1472 mm / 57.9 in	1466 mm / 57.7 in	1466 mm / 57.7 in	1466 mm / 57.7 in	1466 mm / 57.7 in	1466 mm / 57.7"	1466 mm / 57.7"	1466 mm / 57.7"

Key Specifications

Engine

Four stroke, single cylinder, SOHC, 4 valves

Power

46 kW / 65 hp @ 7500 rpm

Torque

65 Nm / 6.6 kgf-m / 47.9 ft-lb @ 6550 rpm

Top Speed

Not published by manufacturer

Weight

148.5 kg / 327 in

Fuel Capacity

13.5 Litres / 3.6 US gal / 3.0 Imp gal

Full 2009 KTM 690 Duke Specifications

Year 2009

Make Model KTM 690 Duke

Seat Height 865 mm / 34 in

Wheelbase 1472 mm / 57.9 in

Ground Clearance 155 mm / 6.1 in

Dry Weight 148.5 kg / 327 in

Fuel Capacity 13.5 Litres / 3.6 US gal / 3.0 Imp gal

Maximum Load / GVWR 350 kg / 772 lbs

Oil Capacity 1.7 L / 1.8 US qt / 1.5 Imp qt

Max Power 46 kW / 65 hp @ 7500 rpm

Max Torque 65 Nm / 6.6 kgf-m / 47.9 ft-lb @ 6550 rpm

Displacement 653.7 cc / 39.91 cu in

Engine Detail Four stroke, single cylinder, SOHC, 4 valves

Bore x Stroke 102 x 80 mm

Compression Ratio 11.8:1

Cooling System Liquid Cooled

Engine Oil Specification Synthetic, 15W-50

Exhaust Stainless steel silencer with regulated catalytic converter

Fuel Induction Generation Keihin EMS with EPT (Electric Power Throttle)

Ignition Kokusan DC-CDI

Lubrication Wet sump

Spark Plug NGK LKAR 8AI - 9

Starter Electric

Battery Capacity 12 V / 11.2 Ah

Clutch APTC multi-disc wet clutch, hydraulically operated

Final Drive Chain X-Ring 5/8 x 5/16"

Gear Ratios 1st 14:35 / 2nd 16:28 / 3rd 21:28 / 4th 21:23 / 5th 23:22 / 6th 23:20

Primary Drive Ratios 36:79

Transmission / Drive 6 Speed

Frame Type Chromoly trellis frame, powder-coated, aluminium sub frame

Suspension - Front WP Upside-down forks, 4860 ROMA

Suspension - Rear WP monoshock, 4618 with Pro-lever deflector

Steering Head Angle 63.5°

Trail 100.7 mm / 3.96 in

Wheel Travel - Front 140 mm / 5.5 in

Wheel Travel - Rear 140 mm / 5.5 in

Brakes - Front Single 320 mm floating disc, radially screwed four-piston brake caliper

Brakes - Rear Single 240 mm floating disc, single piston caliper

Rims - Front Cast aluminium wheels 3.5 x 17"

Rims - Rear Cast aluminium wheels 5.5 x 17"

Tyres - Front 120/70 - R17

Tyres - Rear 160/60 - R17

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.