Dimensions and mass
DIMENSIONS AND MASS
Specification Desc./Quantity
Max. length 1995 mm (78.54 in)
Max. width (at handlebar) 745 mm (29.33 in)
Max. height (to top fairing) 1,150 mm (45.27 in)
Wheelbase 1370 mm (53.93 in)
Kerb weight 183 kg (403.44 lb)
Weight fully loaded 258 kg (568.79 lb)
Engine
ENGINE
Specification Desc./Quantity
Type 2 cylinder in line (transverse), 4 stroke, 4 valves per cylinder,
double overhead camshafts
Engine capacity 40.21 cu in (659 cc)
Bore / stroke 3.19 in / 2.52 in (81 mm / 63.93 mm)
Compression ratio 13.5 +/- 0.5: 1
Intake valve clearance 0.10 - 0.15 mm (0.0039 - 0.0059 in)
Exhaust valve clearance 0.10 - 0.20 mm (0.0039 - 0.0078 in)
Idle engine speed 1400 +/- 100 rpm
Engine revs at maximum speed 10500 +/- 100 rpm
Clutch Multi plate wet clutch with mechanical control lever on left side
of the handlebar. Anti-juddering and slipper clutch systems
Starting Electric
Timing system Morse chain on intake and exhaust camshafts, bucket tappets
and valve clearance adjustment with calibrated pads
Lubrication system Wet sump with heat exchanger coaxial with oil filter
Oil pump Trochoidal pump
Oil filter With external cartridge filter
Cooling Liquid
Cooling system 3-way thermostatic valve, cooling radiator with electric fan and
expansion tank
Coolant pump Centrifugal bearingless aspirating pump with integrated alumi-
nium gasket
Air filter Polyester
Transmission
DRIVE RATIOS
Specification Desc./Quantity
Primary drive ratio 39 / 80 (with gears)
Drive ratio, 1st gear 17 / 46 (secondary)
Drive ratio, 2nd gear 16 / 33 (secondary)
Drive ratio, 3rd gear 24 / 39 (secondary)
Drive ratio, 4th gear 19 / 26 (secondary)
Drive ratio, 5th gear 21 / 25 (secondary)
Drive ratio, 6th gear 22 / 23 (secondary)
Final drive ratio 17 / 43
ELECTRONIC CONTROL SYSTEMS
Specification Desc./Quantity
a-PRC system (Aprilia Performance Ride Control) which includes: AEM (en-
gine map management system), AEB (engine brake map man-
agement system), ABS (anti-lock braking system), ATC
(traction control), AWC (wheelie control), AQS (assisted shift
Characteristics RS 660 - Tuono 660
CHAR - 18
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