These are the known mechanical and performance specifications for your 2008 KTM 690 SMC.
Basic Specs

Engine
Displacement654.00 ccm (39.91 cubic inches)
Type
DetailsSingle cylinder, four-stroke
Max RPM
Compression11.8:1
Bore/Stroke102.0 x 80.0 mm (4.0 x 3.1 inches)
Valves/Cylinder4
Fueling
IgnitionKeihin
Exhaust2-cell stainless seel
LubricationSemi-dry-sump lubrication with 2 Eaton pumps
CoolingLiquid
Drivetrain
Gearbox6-speed
Final DriveChain
ClutchAPTC Wet multi-disc clutch, operated hydraulically
Driveline
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity12.00 litres (3.17 gallons)
Emissions
Chassis
Frame TypeTubular trellis steel frame (CrMo)
Rake27.0°
Trail112 mm (4.4 inches)
Front SuspensionWP USD
Front Travel275 mm (10.8 inches)
Rear SuspensionWP monoshock
Rear Travel265 mm (10.4 inches)
Seat
Seat Height900 mm (35.4 inches) If adjustable, lowest setting.
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance290 mm (11.4 inches)
Wheelbase1,480 mm (58.3 inches)
Dry Weight139.5 kg (307.5 pounds)
Wet Weight
Wheels & Brakes
Front Tire/Tyre120/70-17
Rear Tire/Tyre160/60-17
Front BrakesSingle disc
Front Brake Diameter300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Diameter240 mm (9.4 inches)
Wheels
Comments