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To compare the technical specifications and features of Yamaha Fazer FZ-1 and BMW F 800 ST is a good way to find out which one of these motorcycles will better match your style and requirements. When trying to make your mind on the next motorcycle, your personal levels of comfort should be the leading criteria. After comparing one motorcycle versus another and so on, the circle of favourite models will be then eventually narrowed to several ones. Then the most appropriate judgement can be made when each of them is taken for a real ride.

Yamaha-Fazer FZ-1   vs   BMW-F 800 ST
Picture of Yamaha - Fazer FZ-1Picture of Yamaha - Fazer FZ-1
Yamaha manufacturer BMW
Fazer FZ-1 bike name F 800 ST
Sport touring mootorcycle type Sport touring
since 2006 year Since 2006
206 / 65.5 / 112.5 cm overall size L/W/H(cm)208 / 86 / 115.5 cm
998 cc engine displacement (cc)798 cc
Fuel Injection fuel supply method Fuel injection - electronic
11.5:1 compression ratio 12:1
77x53.6 mm bore and stroke 82x75.8 mm
135mm (5.3 inches) ground clearance 145mm (5.7 inches)
3.7litres (3.9 quarts) engine oil capacity2.9litres (3.1 quarts)
20.0 litres (5.3 gallons) fuel tank capacity 16.0 litres (4.2 gallons)
246 km/h (153 mph) top speed229 km/h (142 mph)
150 hppeak horsepower 85 hp
106 nm (78.2 ft lbs)max torque 86 nm (63.4 ft lbs)
204 kg (450 lbs) dry weight182 kg (401 lbs)
220 kg (485 lbs) curb weight (wet weight) 204 kg (450 lbs)
telescopic forks with 130mm travel front suspension 43mm telescopic fork with 140mm wheel travel
link type swingarm with 130mm travel rear suspension die-cast aluminium single-sided swingarm, rebound damping adjustable with 140mm travel
120/70-ZR17 front tyre size 120/70-ZR17
190/50-ZR17 rear tyre size 180/55-ZR17
6-speed transmission type 6-speed
Electric ignition / starting Electric
Two discs x 320mm front brakes Dual 320mm discs with 4-piston Brembo calipers
One disc x 245mmrear brakes Single 265mm disc with 2-piston caliper, optional ABS
Chain drivefinal drive typeBelt drive
Liquid coolingcooling typeLiquid cooling
6.25 l/100km (37.6 mpg)fuel economy (consumption)5.10 l/100km (46.1 mpg)
technical specifications of Yamaha Fazer FZ-1see data separatelytechnical specifications of BMW F 800 ST

The bigger engine size of Yamaha Fazer FZ-1 in comparison to BMW F 800 ST doesn't mean that it is more powerful or better performing bike. The bigger compression ratio of 12:1 belongs to the second bike. It represents the relation between the biggest and the smallest volume in the combustion chamber while the piston is performing its stroke movement. The bigger compression ratio means better fuel economy comparing engines with the same displacement because the mixture of fuel and air in the combustion chamber burns more effectively.
One of the advantages of BMW F 800 ST compared to Yamaha Fazer FZ-1 is the better fuel economy of 46.1 mpg it has. The other bike has a fuel economy of 37.6 mpg. There are two ways of showing the fuel economy of a motorcycle - describing how many miles it can travel with a single gallon of fuel (mpg) or how many litters of fuel it is burning on a 100 kilometer trip (l\100km).
tire sizes The producer of each bike specifies the sizes of its front and rear tyre. Your type of riding is also to be taken into account here. 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. The width of the tire measured in millimeters is shown first. Both motorcycles have the same with of their front tires - 120 mm. The second number show the aspect ratio. How many inches is the diameter of the rim - that is what the tird number reveals. A good way to save some time and money is to purchase your motorcycle tires online at competitive price.
BMW F 800 ST has bigger ground clearance than Yamaha Fazer FZ-1 (145mm vs 135mm). 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. That, in other words, is the smallest distance between any mechanical body part of the motorcycle and the surface of the road.
Yamaha Fazer FZ-1 appears to be faster than BMW F 800 ST with top speed of 246km/h against 229km/h for the other bike. While some motorcycle manufacturers pretend for precise top speed parameters, often these values are only approximate.Liquid cooled engine of a motorcycle
Both motorcycles are liquid cooled. Motorcycles with liquid cooling operate at narrower temperature ranges. Keeping the operating temperature at a very narrow range allows many engine components to be optimised for these temperatures. The circulation of the coolant from the radiator to the engine is helped by the water pump. If the motorcycle slows down to a point where the air flowing through the radiator is not enough to lower the temperature of the coolant to the needed level, a thermostat will typically switch an electric fan on to increase the air flow through the radiator. Liquid-cooled engines are usually more forgiving because the hot engine has some surrounding coolant to heat up before causing any damage from overheating.
As per their technical specifications both motorcycles have different types of final drive implementation.
chain driven motorcycle The Yamaha Fazer FZ-1is driven by a chain. One of the most economical way to drive horsepower from the engine to the rear wheel of the motorcycle is achieved with the chain drive and therefore it is still the most used among the three options by bike manufacturers. However all chains require keeping an eye on them and proper lubrication when they get dry and cleaning when they get dirty.The BMW F 800 ST is driven by a belt.
Compression ratio 11.5:1 means that the volume of gas in the cylinder when the piston is at the bottom of its stroke refers to the volume of gas when the piston is at the top of its stroke as 11.5:1. The value of the compression ratio of BMW F 800 ST is 12:1 based on the information in its technical data and for Yamaha Fazer FZ-1 the ratio is 11.5:1. To avoid engine knocking when compression ratio is high those motorcycles might be recommended to use premium fuel only. Higher compression ratio means bigger pressure of the fuel/air mix in the combustion chamber and better efficiency achieved of its ignition.
Engine oil is among the most important aspects of an engines health. Mineral and part-synthetic engine oils are cheaper when it comes to price in comparison with the most technically advanced synthetic motor oils. The engine oil is to be changed on every 3700 miles (or 6000 kilometers) as a general rule. More kilometers between two oil changes is accepted when synthetic oil is used. Depending on the oil filter it needs to be replaced on each or every two oil changes. The oil capacity of Yamaha Fazer FZ-1 is 3.7 litres and the engine oil of BMW F 800 ST is 2.9 litres as per their technical specs. The oil capacity information is only to get an idea of how much oil roughly will be needed on oilchange. The best way to pour the exact quantity of oil is to observe the dipstick or the level sight window.

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