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KTM 690 Duke
2011Naked

KTM 690 Duke

Key specifications

Engine
654 cc
Power
64 HP
Torque
67 Nm
Weight
149 kg
Fuel type
petrol
Fuel capacity
3.6 L
Transmission
6-speed
Seat height
34 mm
Front brakes
Single disc
Rear brakes
Single disc

Overview

Introducing the 2011 KTM 690 Duke, a fierce contender in the naked bike category that captures the essence of street riding excitement. With its edgy design and lightweight agility, the 690 Duke appeals to urban riders and enthusiasts alike, delivering a thrilling experience whether you’re navigating city streets or carving through winding roads. KTM, renowned for its off-road prowess, channels that same spirit into the 690 Duke, creating a motorcycle that is both versatile and adrenaline-inducing. At the heart of the 690 Duke lies a robust 654cc single-cylinder, four-stroke engine that churns out a spirited 64.37 horsepower at 7,500 RPM and a hearty 67 Nm of torque at 5,500 RPM. This combination not only provides exhilarating acceleration but also a punchy mid-range performance that many riders crave. The power delivery is smooth and responsive, making it a joy to ride in various conditions. Coupled with a 6-speed gearbox and an APTC slipper clutch, the Duke offers precise shifting and added control during aggressive riding, while the liquid cooling system ensures optimal engine performance even on the hottest days. The 690 Duke doesn’t just excel in engine performance; it’s also built with cutting-edge features and innovative technology. The trellis frame, crafted from chromium-molybdenum, is both lightweight and rigid, contributing to its nimble handling and stability. The suspension setup, featuring WP components with 48mm upside-down forks up front and a mono-shock in the rear, provides 140mm of travel on both ends, offering a balanced ride that absorbs bumps and enhances comfort. With powerful braking capability from a 320mm front disc and a 240mm rear disc, safety and responsiveness are paramount. And with an adjustable seat height of 865mm, the Duke accommodates a variety of rider heights, making it an accessible option for many. Overall, the 2011 KTM 690 Duke is a thrilling naked bike that excels in performance, handling, and style, making it a top choice for those looking to enjoy the open road with a bit of urban flair.

Pros

  • Lightweight and Agile: At just 148.5 kg (327.4 lbs), the 690 Duke is incredibly maneuverable, making it perfect for urban commuting and spirited rides.
  • Powerful Engine Performance: The single-cylinder engine delivers impressive power and torque, offering an exciting and engaging ride experience.
  • Robust Suspension Setup: The high-quality WP suspension components provide excellent handling and comfort, ensuring a smooth ride over various terrains.

Cons

  • Limited Passenger Comfort: The minimalist design may not provide the best comfort for a passenger, making it less ideal for two-up riding.
  • Fuel Capacity: With a fuel tank capacity of only 13.5 liters (3.57 gallons), the range may be limited for longer journeys.
  • Seat Height: At 865mm, the seat height might be a stretch for shorter riders, potentially affecting confidence at stops.

Technical details

Source specification data

Make
KTM
Model
690 Duke
Category
Naked bike
Starter
Electric
Power
64.37 HP (47.0 kW)) @ 7500 RPM
Clutch
APTC slipper clutch, hydraulically operated
Torque
67.00 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 5500 RPM
Gearbox
6-speed
Driveline
16:40. Primary drive: 36:79.
Bore X Stroke
102.0 x 80.0 mm (4.0 x 3.1 inches)
Compression
11.8:1
Displacement
654.00 ccm (39.91 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Exhaust System
Stainless steel underfloor silencer with integrated catalytic converter
Lubrication System
Pressure lubrication with 2 Eaton pumps
Dry Weight
148.5 kg (327.4 pounds)
Seat Height
865 mm (34.1 inches) If adjustable, lowest setting.
Fuel Capacity
13.50 litres (3.57 gallons)
Ground Clearance
155 mm (6.1 inches)
Power Weight Ratio
0.4335 HP/kg
Rake
26.5°
Trail
115 mm (4.5 inches)
Wheels
Cast aluminium wheels 3.5 x 17in., 5 x 17in.
Rear Tyre
160/60-R17
Frame Type
Chromium
-
Molybdenum
trellis frame, powder coated.
Subframe
:
Aluminium
7020.
Front Tyre
120/70-17
Rear Brakes
Single disc
Front Brakes
Single disc
Rear Suspension
WP mono shock with Pro-Lever linkage
Front Suspension
WP USD 48 mm (1.89 in)
Rear Wheel Travel
140 mm (5.5 inches)
Front Wheel Travel
140 mm (5.5 inches)
Rear Brakes Diameter
240 mm (9.4 inches)
Front Brakes Diameter
320 mm (12.6 inches)