BMW G 650 X Series
Introducing the new range of single-cylinder models, BMW Motorrad is broadening its model line-up with a clear focus on additional target groups. Proceeding from the same technical foundation, the Company has created three new motorcycles absolutely different in their features and characteristics: - the G 650 Xchallenge (Cross-challenge) Hard Enduro, G 650 Xmoto (Cross-moto) Street Moto, and the G 650 Xcountry (Cross-country) Scrambler. With their outstanding product substance, their purist looks, and their exceptionally sporting riding characteristics, these single-cylinder models are filling attractive niches in the market. And through their low unladen weight of less than 160 kg according to the DIN standard, they offer dynamic performance for both the connoisseur and the sports-minded rider.
BMW G 650 Xchallenge: the Hard Enduro for the off-road enthusiast.
The BMW G 650 Xchallenge proves at very first sight that it has a lot to offer: This is an uncompromising off-road machine with long spring travel and not one single gram of extra weight. In its design, the BMW G 650 Xchallenge is dominated by proportions typical of a genuine Enduro - a high-lying, but smooth and flat fly line merging directly into the high and slender rear end to offer the rider the ideal seating position. Made of fracture-proof and elastic plastic (mainly polypropylene), the fairing components both light and robust are likewise ideal for tough off-road requirements. The front wheel cover is fitted directly to the lower fork bridge, giving the front wheel superior smoothness and running freedom under all conditions.
The slender fairing, in turn, gracefully takes up the asymmetrically contoured headlight featuring a reflector in free-form design. Positioned off-centre, the parking light, finally, helps to provide that typical look of BMW Motorrad further enhanced by paintwork in Aura White and the blue seat.
Benefiting from 270 mm spring travel both front and rear, BMW Motorrad's new Hard Enduro will easily take on any challenge off the beaten track. Tube diameter of 45 mm in turn, gives the upside-down tele-fork enormous overall stiffness, allowing a handlebar lock of 40°.
The springs and dampers are all specially tuned for off-road use, meeting the highest demands in every respect. As a function of the rider's own weight and personal preferences, the truly ambitious Enduro rider is even able to fine-tune the dampers on their inbound and rebound strokes, the adjustment mechanisms offering predetermined rest points for smooth, consistent adjustment.
Again in the interest of minimum weight, the wheel axle measuring 20 mm in diameter is drilled hollow on both the front and rear wheel. The rear wheel suspension also allows various adjustments and set-ups, albeit of a very different character: Like the BMW HP2 Enduro, the BMW G 650 Xchallenge features the BMW Motorrad Air Damping System, a special spring/damper system operating exclusively with air. In its configuration and functions, the Air Damping System is the same as on the HP2 Enduro and has merely been adjusted in terms of weight and its running requirements.
The BMW Motorrad Air Damping System comes with a piston inside, similar to the configuration in conventional spring struts. Instead of hydraulic fluid, however, this system forces out air through plate valves into a second chamber, the damping effect being achieved by throttling the flow of air.
It almost goes without saying that the wheels and tyres also meet the typical requirements of off-road riding. Due to their better elasticity, spoke wheels come as standard on the BMW G 650 Xchallenge, offering all the features of lightweight technology. The wheel hubs made of aluminium are hollow-cast and are connected to the epoxy-plated aluminium rims by extra-strong wire spokes. To build up sufficient stabilising gyro-forces on difficult and slow trails, the G 650 Xchallenge comes with a front wheel measuring 21 inches in diameter and running as standard on a 90/90-21 tyre, while at the rear an 18-inch wheel running as standard on a 140/80-18 tyre allows the use of specialised off-road tyres whenever required.
Measuring a significant 300 mm in diameter at the front and 240 mm in diameter at the rear, the brake discs - and indeed, the entire brake system - are conceived without compromises for handling high loads. Apart from saving weight, the cross-drilled Wave brake discs on the G 650 Xchallenge have a better self-cleaning effect than conventional discs. And while the front wheel disc runs within a double-piston floating caliper configuration, the rear disc is held tight when required by a single piston floating caliper. With its 15-tooth pinion and a 47-tooth sprocket, the G 650 Xchallenge has a shorter final drive ratio than the other two models in the new G 650 X model range.
BMW G 650 Xmoto - enjoying fast bends on the road.
Even at a standstill, the Street Moto clearly proves that this very special machine focuses on one highlight in particular: sheer riding pleasure on country roads. Small 17-inch wheels, the aluminium handlebar fastened in position by extra-short mounting clamps, the front wheel cover complete with its colour-highlighted tube protectors fitted close to the tyre, as well as the headlight fairing finished in twin-tone Graphitane metallic matt and Red clearly change the proportions of this special model, giving the G 650 Xmoto an even more muscular and athletic look, even though many of the fairing components as well as the asymmetrically designed headlight are the same as on the Hard Enduro.
The Street Moto nevertheless stands out significantly from its "sister models" in terms of its suspension set-up, with the smaller cast-aluminium 17-inch wheels running on sports tyres with very good grip ensuring optimised handling in every respect. Measuring 120/70 at the front and 160/60 at the rear, the tyres reflect the muscular look and character of the machine, allowing use of the latest sports tyres on the rims measuring 3.5 and 4.5 inches in width respectively.
Apart from lower gyro-forces on the front wheel, the shorter camber also enhances the motorcycle's handling and agility on the road.
The forward-leaning seating position also helps to make long and winding bends as well as serpentines a truly outstanding pleasure on two wheels, optimum directional stability on straight passages in between again leaving nothing to be desired.
One of the improvements made to optimise the motorcycle's suspension geometry is the opening for the front axle moved further back, again in the interest of almost playful but nevertheless safe handling for significant benefits also in city traffic.
Both the springs and dampers are specifically tailored to the Street Moto with its particular requirements and riding qualities. While the upside-down telescopic fork offers 270 mm spring travel as on the Hard Enduro, the fork is even firmer and tauter all round in its inbound and rebound motion. Particularly, the sport rider will be happy to enjoy the sensitive, incremental adjustment of the damper in both directions, ensuring an individual, personalised set-up at all times.
Rear-wheel suspension, in turn, is firmer and shorter, with spring travel at the rear of 245 mm.
The Street Moto boasts the most powerful brake system of all models in the G 650 X line-up: At the front a four-piston fixed caliper interacts with a 320-mm brake disc in floating arrangement, interacting with high-grip radial tyres for exceptional deceleration benefiting in particular from the very high torsional stability of the USD telescopic fork with its main tubes measuring 45 mm in diameter.
With its 240-mm brake disc and floating-caliper configuration, the rear-wheel brake is the same as on the other two models.
Final drive on the G 650 X Moto conceived for road use comes with a ratio of 16 : 47 teeth, that is somewhat "longer" than on the Enduro version.
BMW G 650 Xcountry - a modern interpretation of the scrambler.
Back in the '50s and '60s road-going motorcycles also suitable for off-road use, after making a few technical modifications, were called "scramblers". Today the BMW G 650 Xcountry offers the same versatility, bringing together the best of both worlds: excellent road-going qualities combined with off-road assets typical of an Enduro.
In terms of both looks and technical features, the G 650 Xcountry stands out quite clearly from its two sister models: Featuring a smooth-lens round headlight, a "naked" cockpit without fairing, a two-level seat and the front mudguard running close to the wheel and held in position by a stable tubular bracket, the G 650 Xcountry alludes clearly and intentionally to the classic scrambler. Indeed, this particular look is further enhanced by the high-rising exhaust system as well as twin-tone paintwork in Deep Black and White Aluminium matt metallic.
The G 650 Xcountry is also quite unique in technical terms, the telescopic fork still offering ample and relatively smooth wheel travel requiring a mere 240 mm overall travel to ensure exemplary riding comfort and appropriate off-road qualities. The rear gas-pressure spring strut, in turn, comes with an adjustable inbound stroke and spring pre-tension allowing 210 mm spring travel. It also features convenient adjustment for length allowing variation of seat height from 840 to 870 mm. In combination with the high-rising aluminium handlebar complete with vibration-damping weights, this ensures a particularly casual and relaxed seating position.
It almost goes without saying that a scrambler, by tradition alone, simply has to come on wire-spoke wheels. So this is precisely what the G 650 Xcountry has to offer, ensuring consistent lightweight technology all the way, with hollow-cast aluminium hubs and epoxy-plated rims also made of light alloy.
Typical of a scrambler, the 19-inch front wheel, as well as the 17-inch wheel at the rear, both roll on hollow-drilled wheel shafts. The tyres with their own special tread and dimensions of 100/90 at the front and 130/80 at the rear, again live up to all the versatile and individual requirements made of a scrambler.
Superior stopping power is provided also on the G 650 Xcountry by brake discs measuring 300 mm in diameter at the front and 240 mm in diameter at the rear. The brake calipers are floating units with double-piston actuators at the front.
Featuring a 16-tooth pinion and a 47-tooth sprocket, finally, the final drive ratio is exactly the same as on the Street Moto.
All three of these new models are powered by the single-cylinder carried over from the former F 650 models now optimised for even better performance and minimum weight: In the G 650 X-models, the upgraded engine now develops maximum output of 39 kW (53 hp) at 7,000 rpm, reaching maximum torque of 60 Nm at 5,250 rpm. And it almost goes without saying that the engine's well-known virtues such as superior reliability, motoring refinement, economy, and environmental friendliness have been enhanced to an even higher standard than ever before.
Yet a further improvement is the even more dynamic surge of power from the four-valve engine now made possible by the lighter crank-drive and a number of other modifications. The rear wheel, finally, is driven on all three model variants by an O-ring chain.
The bridge-type tubular frame made of steel with cast aluminium side sections and the bolted-on aluminium rear frame, together with the rear-wheel swing arm made of cast light alloy and a number of other high-quality components, characterise the suspension and running gear concept of the entire G 650 X model series - all components are the same on all three models.
Intelligent lightweight technology with a high degree of overall integration of the various components allows particularly low weight for a motorcycle in this class between 156 and 160 kg, depending on the model (DIN unladen weight with 90 per cent tank filling). Dry weight, in turn, is between 144 and 148 kg.
Various set-ups and versions of the upside-down telescopic fork as well as the rear suspension elements give each model its own special character and riding features. The Xchallenge, for example, comes with a particularly elaborate air damping system, while the Xcountry features a spring strut adjustable for length. The wheels and their dimensions, in turn, are tailored to each specific purpose, the Street Moto featuring 17-inch cast light-alloy rims, the Scrambler running on 19- and, respectively, 17-inch spoke wheels, and the Hard Enduro featuring 21- and, respectively, 18-inch spoke wheels highlighting the specific character of each machine.
The brake systems also differ from one model to another: The single-disc front-wheel brakes on the Xcountry and the Xchallenge each measure 300 mm in diameter and come in each case with a double piston brake caliper, while the Xmoto features a four-piston brake caliper interacting with a brake disc measuring 320 mm in diameter.
A feature truly unique in the segment of highly specialised single-cylinder motorcycles - but nevertheless quite natural on a BMW - is the optional availability of light and compact two-channel ABS for even greater braking performance. And it also goes without saying that the ABS anti-lock brake system does not in any way restrict the ambitious sports rider wishing to enjoy himself off the beaten track or on special circuits reserved for racing, since the system may be deactivated on demand. And naturally, the off-road rider enjoying the Xchallenge benefits from the same freedom whenever he or she - wishes.
Indeed, the new models are not only the successors to the former single-cylinder machines, but rather round off the range as a whole, since both the F 650 GS and the F 650 GS Dakar are to remain in the model line-up in 2007, with production continuing at BMW Motorrad's Berlin Plant.
The new single-cylinder models were developed under the leadership of BMW in cooperation with Aprilia S.p.A., Noale, Italy (Piaggio Group). Production is by Aprilia in their North Italian Scorzč Plant, naturally fulfilling all of BMW's strict quality standards. As on the F 650 models, the power unit comes from Austrian specialist Rotax. In their overall concept, the three new models, using largely the same parts and components on the engine and frame as well as the same main features, seek to offer a very different and distinctive character in each case.
The most important features of the new G 650 X model series at a glance:
single-cylinder power unit developing maximum output of 39 kW (53 hp) at
7,000 rpm and peak torque of 60 Nm at 5,250 rpm.