SportTouring ST4 S ABS - Technical specification

 
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Engine

Type
L-Twin cylinder, 4 valve per cylinder Desmodromic; liquid cooled
Displacement
996cc
Bore x Stroke
98x66mm
Compression ratio
11,5:1
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 fuel injection, 50mm throttle body
Exhaust
2 aluminum mufflers with 3-way catalytic converter (non-catalytic for USA version)

Transmission

Gearbox
6 speed
Primary drive
Straight cut gears, ratio 1.84
Ratio
1st 37/15, 2nd 30/17, 3th 27/20, 4th 24/22, 5th 23/24, 6th 24/28
Final drive
Chain; Front sprocket 15; Rear sprocket 38
Clutch
Dry multiplate with hydraulic control
 

Chassis

Frame
Tubular steel trellis
Front suspension
Showa 43mm upside-down fully adjustable fork with TIN
Front wheel
5-spoke light alloy, 3.50x17
Front Tyre
120/70 ZR17
Rear suspension
Progressive linkage with Öhlins fully adjustable monoshock with remote control preload adjustament. Aluminium swingarm
Rear wheel
5-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 320 mm semi-floating discs, 4-piston caliper, ABS controlled
Rear brake
245mm disc, 2-piston caliper, ABS controlled
Instrumentation
Speedometer, rev counter, tripmeter, neutral light, ABS off, oil pressure warning light, low fuel warning light, high beam indicator, turns signals, immobilizer, LCD display with clock, water temperature, fuel level
 

Dimensions and weight

Dry weight
217kg / 478lb
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)
Number of seats
Na

Warranty

Warranty
2 years unlimited mileage
 

Emissions and Consumption

Standard
Emissions are in compliance with Euro1 standard regulations and are also expected to comply with Euro2 regulations, which have still not been defined. (Except for USA version)