BMW G450X

he BMW G450X Sport Enduro is a unique motorcycle that completely redefines enduro riding. That’s because it’s been designed from the ground up to deliver the sort of off-road traction dreams are made of, with a single-cylinder engine and a revolutionary swing-arm design.
And now, numerous technical optimisations have been planned for the BMW G 450 X in the model year 2010. For instance, a new dataset has been developed for the ECU (engine control unit) of the bike's digital engine management system. This results not only in an improvement in fuel consumption (4.3 l/100km versus 4.5 l/100km @ 90km/h) but also a reduction in engine break torque, improved start characteristics and more sensitive responses, particularly with load changes.

What makes the G 450 X so unique? It's the way it's engineered. Quite simply, there is technology on this machine that is totally revolutionary. First off, the countershaft sprocket and swingarm are on the same pivot, which keeps chain tension uniform at all times for better power delivery. The clutch is smaller and mounted directly on the crankshaft which means less heat and stress on the plate. A feisty, fuel injected, easy-starting engine that's mounted forward in a stainless steel, cradle-less frame puts serious, power to the ground, while an extra-long swingarm creates unstoppable traction. Add a gas tank under the seat for a lower center of gravity, no linkage Ohlin's shock, and a forward-mounted airbox, and this is a 450 cc thumper that stands alone as the most original machine to hit the dirt in years.

Features and Specifications:
Engine

Type Water-cooled, single-cylinder tilted forward, 4-stroke, four Titanium valves, two overhead camshafts, dry sump lubrication

Bore x stroke 98 mm x 59 mm

Capacity 449 cc

Rated output Homologated for road use: 41 hp (30 kW) at 7,000 rpm;
open version (with standard silencer): 52 hp (38 kW)
at 9,000 rpm

Max. torque Homologated for road use: 31.7 ft-lb (43 Nm) at 6,500 rpm;
open version with standard silencer: 32.4 ft-lb
(44 Nm) at 7,800 rpm

Compression ratio 12.0 :1

Mixture control / engine management Electronic intake pipe injection / Keihin digital engine management with overrun fuel cut-off

Emission control Closed-loop 3-way catalytic converter


Performance / fuel consumption

Maximum speed approx. 90 mph (145 km/h)

Fuel type Unleaded Premium

Electrical system
Technical data relate to the unladen weight (DIN)

1) According to guideline 93/93/EWG with all fluids, fuelled with at least 90% of usable tank volume
2) Unladen weight without fluids