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Looking at the detailed specifications of both motorcycles Kawasaki W 800 and BMW F800GS is a proper approach to determine which of the two is more likely to match your style of riding and to satisfy your preferences. Your choice of motorcycle should be all about your individual preferences and comfort level. A good way to narrow the circle of favourite bikes is to compare their technical specifications and select just a few that are really matching your style and needs. A good way to find the most suitable one among them would be to sit on each of them and if possible ride it for a while.

Kawasaki-W 800   vs   BMW-F800GS
Picture of Kawasaki - W 800
Kawasaki manufacturer BMW
W 800 bike name F800GS
Naked mootorcycle type Adventure
since 2011 year 2010
218 / 79 / 107.5 cm overall size L/W/H(cm)232 / 94.5 / 135 cm
773 cc engine displacement (cc)798 cc
Fuel injection fuel supply method electronic intake injection
8.4:1 compression ratio 12:1
77x83 mm bore and stroke 82x75.8 mm
130mm (5.1 inches) ground clearance 280mm (11 inches)
3.0litres (3.2 quarts) engine oil capacity2.9litres (3.1 quarts)
14.0 litres (3.7 gallons) fuel tank capacity 16.0 litres (4.2 gallons)
155 km/h (96 mph) top speed193 km/h (120 mph)
47 hppeak horsepower 85 hp
60 nm (44.3 ft lbs)max torque 80 nm (59 ft lbs)
197 kg (434 lbs) dry weight178 kg (392 lbs)
216 kg (476 lbs) curb weight (wet weight) 207 kg (456 lbs)
39mm telescopic fork front suspension 43mm Marzocchi upside down telescopic forks with 230mm wheel travel
twin shock absorber rear suspension cast aluminum dual swing arm, spring preload hydraulically adjustable, rebound damping adjustable. The wheel travel is 215mm.
100/90-19 front tyre size 90/90-21 54V
130/80-18 rear tyre size 150/70-17 69V
5-speed wet, multiple disc, manual transmission type 6-speed constant mesh
Electric starting, digital ignition ignition / starting Electric starting and electronic fuel injection
1x300mm diameter disc and two-piston caliper front brakes dual discs with 300mm diameter and 4-piston caliper. Abs standard.
160mm drumrear brakes Single 265mm disc with 2-piston caliper
Chain drivefinal drive typeChain drive
Air coolingcooling typeLiquid cooling
5.10 l/100km (46.1 mpg)fuel economy (consumption)5.70 l/100km (41.3 mpg)
technical specifications of Kawasaki W 800see data separatelytechnical specifications of BMW F800GS

Although BMW F800GS has a bigger engine displacement than Kawasaki W 800 it doesn't necessarily mean it is more powerful or better performing bike. The second bike has the advantage of greater compression ratio of 12:1 than the other one. This ratio is the relation of the volume in the cylinder when the piston is at the bottom of the stroke to the volume in the cylinder when the gas is compressed and the piston is at the top of the stroke. When one of two bikes with same engine displacement has a higher compression ratio it also has a better fuel economy because the mixture of air and fuel in the combustion chamber is burning at higher pressure and with better thermal efficiency.
Kawasaki W 800 has a better fuel economy (46.1 mpg) compared to BMW F800GS which fuel economy is a 41.3 mpg. The fuel economy of a motorcycle is either measured in mpg or l/100km, the first showing how many miles can be ridden with a gallon of fuel and the second showing how many litters of fuel are consumed on a 100km ride.
bike tires Motorcycle tyres come in variety of sizes and these sizes are strongly specified for each model. The right choice also depends on your style of riding, whether you are speeding and riding agressively. Tires have a code of numbers and letters printed on their sides and these are important to be understood properly when looking for matching tires. Firstly the code shows the width of the tire measured in millimeters. The second number show the aspect ratio. The third of the code numbers reffers to the size of the rim and it is measured in inches. Looking online for motorcycle tires is a good way to easily find the right size at low price.
As per the data sheets BMW F800GS has a bigger ground clearance (280mm) than Kawasaki W 800 (130mm). Usually given in millimeters in the technical data sheets, the ground clearance refers to the space between ground level and underside of a motorcycle’s chassis and sometimes is called ride height. In simple terms that would be the shortest line among all the lines drawn between the surface of the road and any mechanical part of the motorcycle.
BMW F800GS appears to be faster than Kawasaki W 800 with top speed of 193km/h against 155km/h for the other bike. While some motorcycle manufacturers pretend for precise top speed parameters, often these values are only approximate.
chain driven motorcycle Both motorcycles Kawasaki W 800 and BMW F800GS have the same final drive - chain. Chain drives are by far the most popular final drive technology in the history of motorcycles and are the most economical way to drive power from the engine to the rear wheel. However chains have their down points - more frequent need of maintenance (lubrication and cleaning) which means that a biker should always keep an eye on the chain especially in rainy days or dusty roads.
Compression ratio of a motorcycle engine is the ratio of the volume of the combustion chamber when the piston is at the bottom of the stoke and its volume when the piston is at the top of the stroke. The value of the compression ratio of BMW F800GS is 12:1 based on the information in its technical data and for Kawasaki W 800 the ratio is 8.4:1. Premium fuel might be recommended for some motorcycles with high levels of compression ration in order to avoid engine knocking. If you got a motorcycle with a greater compression ratio for its specific engine it is getting better fuel economy than it would if it had a lesser compression ratio.
The good quality of the engine oil is an important factor in keeping the motorcycle in peak condition. Engine oils are different types as synthetic, mineral, part-synthetic and they all come at their price and qualities. 3700 miles (6000 km) between oil changes is widely accepted rule. If you you synthetic oil then bigger mileage can be allowed between oil changes. The oil filter needs to be replaced too and that is usually to be done with the oil change. According to the technical specs the engine oil capacity is 3.0 litres for Kawasaki W 800 and 2.9 litres for BMW F800GS. When changing the oil it is advisable to put less than the specified oil capacity and to check the level. The proper amount of oil needed is best judged while observing the reading on the level sight window (or the dipstick).


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