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2017 KTM 690 Duke

Engine Configuration Single, 4-Stroke
 Engine Displacement 692.7cc
 Engine Cooling System  Liquid
 Compression Ratio 12.7:1
 Combustion Chamber Design Pentroof
 Valves Per Cylinder  4
Intake Valves Per Cylinder  2 (Steel)
 Exhaust Valves Per Cylinder
 2 (Steel)
 Bore x Stroke 105.0mm x 80.0mm
 Claimed Peak Horsepower
 Claimed Peak Torque
 Measured Peak Horsepower 70.56 bhp @ 8,350 rpm
Measured Peak Torque 50.93 lbs-ft @6,600 rpm
Measured Horsepower To Weight Ratio  5.2 pounds per horsepower
 Engine Redline 10,000 rpm
Valve Angle (Included)
 Combustion Chamber Volume 59 cc
 Valve Train Type SOHC, Link-plate Chain Drive,
Bucket  Tappers (Intake) and Forked Roller Rocker Arm (Exhaust)
 Valve Adjustment Interval  6,200 miles (10,000km)
 Intake Valve Diameter 42.0 mm
 Exhaust Valve Diameter 36.0 mm
  Intake Valve Stem Diameter 5.9 mm
 Exhaust Valve Stem Diameter 5.9 mm
  Intake Valve Maximum Lift
 Exhaust Valve Maximum Lift
  Intake Valve Timing  
  Open BTDC
 Close ABDC
Duration
 Exhaust Valve Timing  
Open BBDC
Close ATDC
Duration
 Valve Timing Measuring Point
 Fuel Delivery System Keihin Fuel Injection 
Throttle Body Venturi Size 50 mm
 Air Filter Type Pleated Paper Element
 Exhaust System Type 1-1, Stainless Steel 
 Ignition System  Digital 
 Lubrication System Semi-Dry Sump
 Oil Capacity 1.8quarts (1.7 liters)
 Fuel Capacity 3.7 gallons (14.0 liters) 
 Transmission Type  6-speed, Constant mesh
 Clutch Type  Multi-plate, Wet, APTC Back-Torque-Limiting
Clutch Actuation System Hydraulic
Clutch Spring Type  Coil
Number Of Clutch Springs 4

 Number of Clutch Plates
15
Drive Plates 8
Driven Plates 7
 Primary Drive  Gear (Straight-cut)
Primary Drive Gear Teeth (Ratio) 79/36 (2.194:1)
Final Drive Sprocket Teeth (Ratio) 40/16 (2.500:1)
Transmission Gear Teeth (Ratios)  
 6th
20/23 (0.870:1)
 5th
22/23 (0.957:1)
 4th
23/21 (1.095:1)
 3rd
28/21 (1.333:1)
 2nd
28/16 (1.750:1)
 1st
35/14 (2.500:1)
 Transmission Overall Ratios  
 6th
4.772: 1
 5th
5.249: 1
 4th
6.006: 1
 3rd
7.312: 1
 2nd
9.599: 1
 1st
13.713:1
 Theoretical Speed in Gears at Redline  
 6th
139 mph
5th 126 mph
4th 110 mph
3rd 91 mph
2nd  69 mph
1st  48 mph