Moto Guzzi Stelvio 1200 NTX
This is not the first time that the name “NTX” has been used in the history of Moto Guzzi. In 1986, in the heyday of long distance African races such as the Paris-Dakar and the Rally of the Pharaohs, the Mandello del Lario based marque used this moniker to distinguish its extreme adventure models, bikes that earned such respect that they were produced for over a decade. Today, these three letters have been brought back to identify the most specialised and adventurous version of the Stelvio 1200 4V NTX, the bike that marked the return of Moto Guzzi to the maxi enduro segment. Bolstering this image is the robust “armour” encasing the forms of the Moto Guzzi Stelvio 1200 4V NTX, consisting of a sump guard, an engine guard and integrated hand shields to protect the rider and his steed from any obstacle on their way. Adding visual presence yet also sturdy and practical, the aluminium panniers and supplementary halogen headlamps complete the generous standard equipment of the new NTX, which may be even further enhanced with a comprehensive selection of optional accessories such as a GPS, heated hand grips and, for the more adventurous rider, a kit of enduro tyres with a rear 150/70 R17 tyre mounted on the standard 4.25 inch rim.
Once in the saddle, the reality proves to be even better than you could have imagined, with the powerful “Quattrovalvole” engine delivering, in its latest incarnation, a maximum torque of 113 Nm at just 5800 rpm, marking a significant improvement over the 108 Nm at 6400 rpm of the previous version.
These results were achieved by adopting new cam profiles and a revised air box, which make the “Quattrovalvole” engine even more responsive at low engine speeds while still producing practically the same maximum power. Completing this technological tour de force is a new ABS braking system, introduced on the Stelvio 1200 4V together with the more flexible engine. The NTX has been designed with the same innovative and modern criteria as its smaller sister, and this is evident in both the quality of the chassis componentry and in premium details such as the adjustable windscreen and saddle, and the ingenious glove-box compartment with remote release operable from the handlebar, which reveal the attention dedicated in the project to rider and passenger ergonomics.
| ENGINE | |
| Type: | 90° V-twin engine, 4-stroke |
| Cooling: | through air and oil and an independent cooling pump |
| Engine capacity: | 1,151 cc |
| Bore and stroke: | 95 x 81.2 mm |
| Compression ratio: | 11: 1 |
| Timing system diagram: | intake valve opening 12° BTDC |
| (1-mm checking clearance): | intake valve closing 49° ABDC |
| exhaust valve opening 55° BBDC | |
| exhaust valve closing 19° ATDC | |
| Maximum power: | 77 kW (105CV) at 7,250 rpm |
| Maximum torque: | above 113 Nm at 5,800 rpm |
| Fuel supply / Ignition: | Multipoint sequential electronic ignition, Magneti Marelli IAW5A phased, alfa-n system; two Ø 50mm throttle bodies, Weber IWP 189 injectors, lambda probe. |
| Starter: | Electric |
| Spark plugs: | NGK PMR8B (Long Life) |
| Exhaust system: | stainless steel, 2-in-1 type, three-way catalytic converter with lambda probe |
| Type approval: | Euro 3 |
| TRANSMISSION | |
| Gearbox: | 6-speed |
| Gear ratio values | 1st 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 drive: | with helical teeth, ratio 26/35 = 1: 1.346 |
| Final drive: | Compact reactive cardan shaft drive system called CA.R.C.; double cardan joint and floating bevel gear seat, drive ratio 12/44 = 1: 3.666 |
| Clutch: | single-disc with integrated anti-vibration buffer |
| CHASSIS | |
| Chassis: | High yield strength tubular steel with integrated engine |
| Centre to centre distance: | 1,535 mm |
| Trail: | 125 mm |
| Headstock angle: | 27° |
| Steering angle: | 34° |
| Front suspension: | completely adjustable fork (spring preload and hydraulic compression and rebound damping) with 50 mm diam. upside down stanchions and caliper mounting for radial brake calipers |
| Front wheel travel: | 170 mm |
| Rear suspension: | single arm with progressive linkage, monoshock with adjustable hydraulic rebound damping and spring preload adjuster knob |
| Rear wheel travel: | 155 mm |
| Front brake: | dual 320 mm stainless steel floating discs, radial calipers with 4 horizontally opposed pistons |
| Rear brake: | 282 mm stainless steel fixed disc, floating caliper with 2 parallel pistons |
| Wheels: | Tubeless with spokes |
| Front wheel rim: | 2.50” x 19” |
| Rear wheel rim: | 4.25” x 17” |
| Front tyre: | 110/80 R19” |
| Rear tyre: | 150/70 R17” |
| ELECTRICAL SYSTEM | |
| System voltage: | 12 V |
| Battery: | 12V – 18 Ah |
| Alternator: | 12 V – 550 W |
| SIZES | |
| Length: | 2250 mm |
| Width: | 1025 mm |
| Height: | 1475 mm (windshield high position) |
| Saddle height: | 840 mm |
| Minimum ground clearance: | 210 mm |
| Kerb weight: | 251 Kg |
| Fuel tank capacity: | 18 litres |
| Reserve: | 4.5 litres |
