Cool-Motorcycles reviews KTM 690 Duke

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The exotic outsider just a few years ago, the Duke has long since created its own domain, including its own values. Or better said: performance values.

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If superathletes feared the Duke then, now it’s practically unbeatable.
To ride the Duke you need skill, courage and of course: style!

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TECHNICAL SPECIFICATION

Engine

• Engine type: Single cylinder, 4-stroke
• Displacement: 654 cc
• Bore x stroke: 102 / 80 mm (4.01 / 3.15″)
• Performance (homologated): 48 kW / 7500 rpm
• Max. torque: 67 Nm / 5500 rpm
• Compression ratio: 11.8:1
• Starter/Battery: E-Starter / 12 V 8.6 Ah
• Transmission: 6 gears, dog clutch engagement
• Fuel Mixture Generation: Keihin EFI with EPT (Electr. Power Throttle)
• Control: 4 V / OHC with roller rocker levers
• Lubrication: Pressure lubrication with 2 Eaton pumps
• Engine lubrication: Motorex, fully synthetic, SAE 10W-60
• Primary drive: 36:79
• Final drive: 16:40
• Cooling: Liquid cooled
• Clutch: APTC slipper clutch, hydraulically operated
• Motor Management: Keihin EMS

Chassis

• Frame: Chromium-Molybdenum trellis frame, powder coated
• Subframe: Aluminium 7020
• Handlebar: Aluminium, Ø 28 / 22 mm (1.10 / 0.87″), tapered
• Front suspension: WP USD Ø 48 mm (1.89″)
• Rear suspension: WP mono shock with Pro-Lever linkage
• Suspension travel front/rear: 140 / 140 mm (5.51 / 5.51″)
• Front brake: Brembo four piston, radially bolted caliper, brake disc Ø 320 mm (12.6″)
• Rear brake: Brembo single piston, floating caliper, brake disc Ø 240 mm (9.45″)
• Rims, front/rear: Cast aluminium wheels 3.5 x 17″; 5 x 17″
• Tires, front/rear: 120/70 R 17″; 160/60 R 17″
• Chain: X-Ring 5/8 x 1/4″
• Battery: 12 V / 8.6 Ah
• Main silencer: Stainless steel underfloor silencer with integrated catalytic converter
• Steering head angle: 63.5°
• Trail: 115 mm (4.53″)
• Wheel base: 1472 ± 15 mm (57.95 ± 0.59″)
• Ground clearance (unloaded): 155 mm (6.1″)
• Seat height: 865 mm (34.06″)
• Tank capacity: approx. 13.5 liters / 2.5 liters reserve (3.56 / 0.66 gal)
• Weight (no fuel): approx. 148.5 kg (327.4 lbs)

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Cool-Motorcycles reviews KTM 690 Duke