Key performance
Technical specifications
Engine
- Displacement
- 999 cc
- Power
- 98.0 ch @ 8500 tr/min (70.5 kW)
- Torque
- 95.0 Nm @ 6500 tr/min
- Engine type
- V2, four-stroke
- Cooling
- Liquid
- Compression ratio
- 11.5:1
- Bore × stroke
- 101.0 x 62.4 mm (4.0 x 2.5 inches)
- Valves/cylinder
- 4
- Camshafts
- 2 ACT
- Fuel system
- Injection
- Valve timing
- Double Overhead Cams/Twin Cam (DOHC)
- Starter
- Electric
Chassis
- Frame
- Tubular chromoly space frame, powder-coated
- Gearbox
- 6-speed
- Final drive
- Chaîne
- Clutch
- Wet multi-disc clutch, operated hydraulically
- Front suspension
- WP USD
- Rear suspension
- WP monoshock PDS with hydr. spring preload
- Front wheel travel
- 250 mm (9.8 inches)
- Rear wheel travel
- 255 mm (10.0 inches)
Brakes
- Front brakes
- Double disc. ABS
- Rear brakes
- Single disc. ABS
- Front tyre
- 90/90-21
- Front tyre pressure
- 2.40 bar
- Rear tyre
- 150/70-18
- Rear tyre pressure
- 2.60 bar
Dimensions
- Seat height
- 920.00 mm
- Seat type
- Selle biplaces
- Wheelbase
- 1570.00 mm
- Fuel capacity
- 22.00 L
- Dry weight
- 199.00 kg
- New price
- 12 990 €
Overview
When KTM decided to take on the adventure-touring segment in the mid-2000s, nobody expected the Austrians to play the unabashed brute force card. The 2008 KTM 990 Adventure S perfectly embodies this philosophy: take a V-twin of nearly one liter, bolt it into a chassis built for African trails, and let the rider sort out the rest. A recipe that looks mouth-watering on paper. And on the road, it delivers.

The 999 cc V-twin produces 98 horsepower at 8,500 rpm and 95 Nm of torque at 6,500 rpm. Figures that place the KTM 990 Adventure S at the top of the pack against a BMW R 1200 GS of the same era — more powerful, admittedly, but also heavier and less sharp. The Austrian engine has character. It vibrates, it growls, it pulls hard from the midrange and pushes the machine to a 210 km/h top speed. The chain-driven six-speed gearbox sometimes lacks precision when cold, but it handles high-mileage days without complaint. The 11.5:1 compression ratio and short-stroke architecture (101 mm bore by 62.4 mm stroke) betray a temperament geared toward higher revs, setting this twin apart from the smoother Bavarian competition.
On the chassis side, KTM doesn't do things by halves. The tubular chromoly frame, light and rigid, helps keep dry weight down to 199 kg. That's remarkable for a machine of this displacement fitted with a 22-liter tank. The WP suspension — an inverted fork up front and a PDS monoshock with hydraulic preload at the rear — provides generous travel that genuinely allows you to venture off the beaten path. The 90/90-21 front and 150/70-18 rear tires confirm the machine's off-road calling. Compared to a Yamaha Super Ténéré or a Honda Varadero, the 990 Adventure S proves far more credible when the tarmac runs out. Braking is handled by a dual ABS disc setup at the front and a single ABS disc at the rear, proving effective overall, though initial front brake bite can sometimes feel lacking.

The 920 mm seat height is the sticking point. Riders under five foot eleven will struggle to put both feet flat on the ground, and the machine offers no simple adjustment to lower the seat. This is a deliberate choice by KTM: ground clearance takes priority over accessibility. The 1,570 mm wheelbase provides reassuring stability at high speed while maintaining decent maneuverability on trails. This bike is clearly aimed at experienced adventurers — those who plan a raid across Morocco as readily as a blast through the Alps on broken roads. Beginners need not apply; the tall seat and lively engine character don't forgive sloppy inputs.

At €12,990 when new, the KTM 990 Adventure S was positioned slightly below the R 1200 GS while offering a radically different experience. Less versatile than the Bavarian for two-up riding and long highway hauls, it gets its revenge the moment the road deteriorates. This is a machine that demands commitment, rewards the active rider, and punishes complacency. Exactly what you'd expect from a KTM.
Standard equipment
- Assistance au freinage : ABS de série
Practical info
- La moto est accessible aux permis : A
- Pays de fabrication : Autriche
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