APRILIA RS 660 User Manual

the bushings for connecting the connecting rods to the crankshaft can be defined according to the
following table:
CONNECTING RODS - CRANKSHAFT COUPLING
Crank pin
dimensional class
Connecting rod class
1
Clearance Connecting rod class
2
Clearance
X BLUE + YELLOW 0.053 - 0.026 mm YELLOW + YELLOW
(alternatively BLUE +
GREEN)
0.053 - 0.027 mm
Y YELLOW + YELLOW
(alternatively BLUE +
GREEN)
0.054 - 0.026 mm YELLOW + GREEN 0.054 - 0.027 mm
Z YELLOW + GREEN 0.054 - 0.026 mm GREEN + GREEN 0.054 - 0.028 mm
N.B.
The thicker bushing must be mounted on the side of the connecting rod (upper area).
Construction features
CRANK PINS
Class X Class Y Class Z
Min: 35.885 mm Min: 35.880 mm Min: 35.874 mm
Max: 35.880 mm Max: 35.874 mm Max: 35.869 mm
CONNECTING ROD CLASSES
Class 1 Class 2
Min: 39.010 mm Min: 39.017 mm
Max: 39.016 mm Max: 39.022 mm
CONNECTING ROD BUSHINGS
BLUE YELLOW GREEN
1.547 mm 1.552 mm 1.557 mm
1.552 mm 1.557 mm 1.562 mm
Bushing selection
CRANKSHAFT BUSHINGS
Crankcase category
Crankcase selectable in two classes (A - B) for the
diameter of the hole on the three main supports of
the crankshaft.
The category is marked on the lower crankcase,
on the right side, at the crankshaft.
The thee main supports may be of different
classes (e.g: A - B - B or B - B - B or A - B - A, etc.).
RS 660 - Tuono 660 Engine
ENG - 189

APRILIA RS 660 Specifications

General

Displacement	659 cc
Bore x Stroke	81 mm x 63.93 mm
Compression Ratio	13.5:1
Maximum Power	100 HP (73.5 kW) @ 10, 500 rpm
Maximum Torque	67 Nm @ 8, 500 rpm
Transmission	6-speed
Frame	Aluminum dual beam chassis
Front Tire	120/70 ZR 17
Rear Tire	180/55 ZR 17
Seat Height	820 mm
Dry Weight	169 kg
Wet Weight	183 kg
Engine Type	Parallel twin
Fuel System	Electronic fuel injection with 48 mm throttle bodies
Front Suspension	Kayaba 41 mm upside-down fork, adjustable rebound and preload
Rear Suspension	Kayaba monoshock, adjustable rebound and preload
Front Brake	Dual 320 mm discs, Brembo radial calipers
Rear Brake	220 mm disc, Brembo caliper
ABS	Cornering ABS
Fuel Capacity	15 liters
Electronics	Ride-by-wire, multiple riding modes, traction control