SportTouring ST4S - Technical specification

 
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Engine

Type
L-Twin cylinder, 4 valve, Desmodromic, liquid cooled
Displacement
996cc
Bore x Stroke
98 x 66mm
Compression ratio
9.2:1 
Power
116hp - 85kw @ 8750rpm *
Torque
10kgm - 98Nm @ 7250rpm *
 
* The power/torque values indicated are measured using an engine dynamometer according to homologation regulation and they correspond to the homologated data, as quoted in the Bike Registration Document.
Fuel injection
Marelli electronic injection, 50mm throttle body
Exhaust
2 aluminium mufflers

Transmission

Gearbox
6 speed
Primary drive
Straight cut gears, ratio 1.84
Ratio
1a 37/15, 2a 30/17, 3a 27/20, 4a 24/22, 5a 23/24, 6a 24/28
Final drive
Chain; Front sprocket 15; Rear Sprocket 40
Clutch
Dry multiplate with hydraulic control
 

Chassis

Frame
Tubular steel trellis frame
Front suspension
Showa with TiN upside-down fork fully adjustable
Front wheel
Five spoke light alloy, 3.50x17
Front Tyre
120/70 ZR17
Rear suspension
Progressive linkage with Sachs adjustable monoshock. Aluminium swing-arm
Rear wheel
Five spoke light alloy, 5.50 x 17
Rear tyre
180/55 ZR17
Front wheel travel
130mm / 5.1in
Rear wheel travel
148mm / 5.8in
Front brake
2 x 320mm semi-floating discs, 4-piston caliper
Rear brake
245mm disc, 2-piston caliper
Instrumentation
Speedometer, rev counter, tripmeter, LCD display with clock, water temperature, fuel level, warning light for low pressure, indicators for high beams, turns signals
 

Dimensions and weight

Dry weight
212kg / 467 lb
Seat height
820mm / 32.8in
Wheelbase
1430mm / 56.3in
Rake
24°
Fuel tank capacity
21l (of which 6l reserve) / 5.5 US gal (of which 1.5 US gal reserve)
 

Warranty

Warranty
2 years unlimited mileage
 

Emissions and Consumption

Standard
Na