Tuesday, November 2, 2010

MOTO GUZZI MOTORCYCLE STELVIO1200 4V

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.

Engine

Type90° V-twin engine, 4-stroke
Coolingthrough air and oil and an independent cooling pump
Engine capacity1,151 cc
Bore and stroke95 x 81.2 mm
Compression ratio11: 1
Timing system diagram
(1-mm checking clearance)
intake valve opening 36° BTDC
intake valve closing 62° ABDC
exhaust valve opening 58° BBDC
exhaust valve closing 30° ATDC
measured with a 1.5 mm rocker arms/valve control clearance
Maximum power77 kW (105CV) at 7,500 rpm
Maximum torqueabove 108 Nm at 6,400 rpm
Fuel supply / IgnitionMultipoint sequential electronic ignition, Magneti Marelli IAW5A phased, alfa-n system; two Ø 50mm throttle bodies, Weber IWP 189 injectors, lambda probe.
Start-upElectric
Spark plugsNGK PMR8B (Long Life)
Exhaust systemstainless steel, 2-in-1 type, three-way catalytic converter with lambda probe
Type approvalEuro 3

Transmission

Gearbox6 gears
Gear ratio values1st 17/38 = 1 : 2.235
2nd 20/34 = 1 : 1.700
3rd 23/31 = 1 : 1.348
4th 26/29 = 1 : 1.115
5th 31/30 = 1 : 0.968
6th 29/25 = 1 : 0.862
Primary transmissionwith helical teeth, ratio 26/35 = 1: 1.346
Final driveCompact reactive cardan shaft drive system called CA.R.C.; double joint and floating bevel gear pair, ratio 12/44 = 1 : 3.666
Clutchsingle-disc with integrated anti-vibration buffer

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