Moto Guzzi Stelvio ABS
The Stelvio is a winding road immersed in the shadow of the
Ortles Massif, with 84 hairpin bends reaching a height of 2,757
metres, linking Valtellina with Val Venosta. For motorcyclists,
and other road-lovers, this road built in 1855 is a legendary
route combining the difficulties of a winding mountain road with
the beauty of nature, condensed into an extraordinary intense
riding experience. For Moto Guzzi it’s a historical test
bed, the ideal place to test different chassis setups,
deceleration resistance and power, engine response, and
suspension. A test bed where Mandello’s new creation,
taking its first steps, immediately impressed riders thanks to
the dynamic and fun handling. The bike was so impressive it
seemed only natural to sum up the talent that went into the
design and technical solutions of the new maxi enduro Moto Guzzi
in the images and sensations of a place where riding pleasure is
enriched by a sense of adventure, a sporting challenge, touring
extreme: the Stelvio.
9
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ENGINE AND TRANSMISSION.
ENGINE
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Type
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90° V-twin engine, 4-stroke
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Cooling
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through air and oil and an independent cooling pump
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Engine capacity
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1,151 cc
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Bore and stroke
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95 x 81.2 mm
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Compression ratio
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11: 1
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Timing system diagram
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intake valve opening 36° BTDC
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(1-mm checking clearance)
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intake valve closing 62° ABDC
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exhaust valve opening 58° BBDC
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exhaust valve closing 30° ATDC
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measured with a 1.5 mm rocker arms/valve control
clearance
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Maximum power
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77 kW (105CV) at 7,500 rpm
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Maximum torque
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above 108 Nm at 6,400 rpm
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Fuel supply / Ignition
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Multipoint sequential electronic ignition, Magneti
Marelli IAW5A phased, alfa-n system; two Ø 50mm
throttle bodies, Weber IWP 189 injectors, lambda probe.
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Start-up
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Electric
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Spark plugs
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NGK PMR8B (Long Life)
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Exhaust system
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stainless steel, 2-in-1 type, three-way catalytic
converter with lambda probe
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Type approval
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Euro 3
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TRANSMISSION
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Gearbox
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6 gears
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Gear ratio values
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1st 17/38 = 1 : 2.235
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2nd 20/34 = 1 : 1.700
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3rd 23/31 = 1 : 1.348
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4th 26/29 = 1 : 1.115
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5th 31/30 = 1 : 0.968
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6th 29/25 = 1 : 0.862
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Primary transmission
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with helical teeth, ratio
26/35 = 1: 1.346
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Final drive
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Compact reactive cardan shaft drive system called
CA.R.C.; double joint and floating bevel gear pair, ratio
12/44 = 1 : 3.666
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Clutch
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single-disc with integrated anti-vibration buffer
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PRESS INFORMATION 2008
