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Looking at the detailed specifications of both motorcycles BMW R1200RT and BMW K1200GT is a proper approach to determine which of the two is more likely to match your style of riding and to satisfy your preferences. When you know what specifications and features of a motorcycle will make you personally comfortable with it then your choice should be all about this criteria. 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. The most appropriate method of exploring them is to actually ride each of them or at least sit on them to see how they feel.

BMW-R1200RT   vs   BMW-K1200GT
Picture of BMW - R1200RT
BMW manufacturer BMW
R1200RT bike name K1200GT
Tourer mootorcycle type Sport touring
since 2005 year 2003-2008
223 / 90.5 / 143 cm overall size L/W/H(cm)232 / 96.5 / 114 cm
1170 cc engine displacement (cc)1157 cc
electronic intake pipe injection fuel supply method BMSK fuel injection
12:1 compression ratio 13:1
101x73 mm bore and stroke 79x59 mm
155mm (6.1 inches) ground clearance 180mm (7.1 inches)
3.8litres (4 quarts) engine oil capacity3.8litres (4 quarts)
25.0 litres (6.6 gallons) fuel tank capacity 24.0 litres (6.3 gallons)
234 km/h (145 mph) top speed253 km/h (157 mph)
110 hppeak horsepower 157 hp
120 nm (88.5 ft lbs)max torque 130 nm (95.9 ft lbs)
233 kg (514 lbs) dry weight249 kg (549 lbs)
259 kg (571 lbs) curb weight (wet weight) 282 kg (622 lbs)
BMW Motorrad telelever. 120mm wheel travel front suspension BMW duolever. 115mm wheel travel.
Cast aluminum single sided swing arm with BMW motorrad paralever. 135mm wheel travel rear suspension single cast aluminum BMW paralever, central spring strut with lever system. 135mm wheel travel.
120/70-ZR17 front tyre size 120/70-ZR17
180/55-ZR17 rear tyre size 180/55-ZR17
6-speed gearbox, constant mesh transmission type 6-speed gearbox, constant mesh
Electric ignition / starting Electric
floating brake discs with 320mm diameter and four-piston fixed calipers front brakes double discs with 320mm diameter and 4-piston caliper
Single 265mm disc with 2-piston floating caliper. Standard ABSrear brakes single 294mm disc and 2-piston caliper
Shaft drivefinal drive typeShaft drive
Liquid coolingcooling typeLiquid cooling
5.60 l/100km (42 mpg)fuel economy (consumption)6.30 l/100km (37.3 mpg)
technical specifications of BMW R1200RTsee data separatelytechnical specifications of BMW K1200GT

The bigger engine size of BMW R1200RT in comparison to BMW K1200GT doesn't mean that it is more powerful or better performing bike. The second bike has the advantage of greater compression ratio of 13:1 than the other one. It represents the relation between the biggest and the smallest volume in the combustion chamber while the piston is performing its stroke movement. 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.
The bike with a better fuel economy is the BMW R1200RT which can travel 42 miles with one gallon of fuel. BMW K1200GT on the contrary can travel 37.3 miles with a gallon. When measured in mpg the fuel economy shows how many miles can be traveled with a gallon of fuel. Alternatively when measure in l\100km it shows the fuel consumption in litters per 100 kilometer trip.
front and rear tires The size of the tyres is specified by the producer for each motorcycle. Picking the proper type that matches your individual style of riding is very essential. You need to know what the code designators printed on the tire mean in order to be able to find the proper size for your bike. Firstly the code shows the width of the tire measured in millimeters. Both motorcycles BMW R1200RT and BMW K1200GT have the same width of their tires - 120 mm for the front tire and 180 mm for the rear one. The profile of the tire is revealed by the second number. And the third number indicats the diameter of the rim in inches. Since many internet stores are offering motorcycle tires it is an easy way to get proper pair of tires online at reasonable price.
The ground clearance of BMW K1200GT (180mm) is bigger than the one of BMW R1200RT (bbb2mm). The parameter ground clearance refers to the space between the ground and underside of the chassis and is also called ride height of a motorcycle. That, in other words, is the smallest distance between any mechanical body part of the motorcycle and the surface of the road.
BMW K1200GT appears to be faster than BMW R1200RT with top speed of 253km/h against 234km/h for the other bike. Sometimes of course motorcycle speed statistics may be contradictory from various sources.engine of a liquid cooled motorcycle
BMW R1200RT and BMW K1200GT are both liquid cooled. The tiny variations of the operating temperatures are one of the significant advantages of the liquid cooled motorcycles. Therefore the liquid-cooled engine runs more efficiently and consistently. The circulation of the coolant from the radiator to the engine is helped by the water pump. A thermostat turns on an electric fan to draw more air over the radiator in case the motorcycle slows down and the air flowing through the radiator is not enough to cool the liquid inside it to the desired level. A liquid-cooled engine happens to be quieter than the air-cooled one because all that liquid that surrounds the engine deadens mechanical noise.
motorcycle with shaft final drive BMW R1200RT and BMW K1200GT are both driven by shaft.Shaft drives are almost maintenance-free - they only need the oil from their reservoir periodically drained and changes but many miles can be covered with one change. They are also very smooth and quiet. On the other had they are the most expensive among the three options and add weight to the motorcycle. Also it is a fact that some minor power is lost because of the moving gears implemented in their design.
Compression ratio 12:1 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 12:1. The value of the compression ratio of BMW K1200GT is 13:1 based on the information in its technical data and for BMW R1200RT the ratio is 12:1. In other words it represents how tightly the mixture of fuel and air in the combustion chamber is pressed before the ignition. It plays a big role in engine efficiency because bigger compression ratio means better thermal efficiency and more mileage with the same amount of gas.
One of the most important aspects of the basic level of maintenance of a motorcycle is the engine oil. 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. Synthetic oil can be changed less often though. The oil filter needs to be replaced too and that is usually to be done with the oil change. The oil capacity is 3.8 litres for both bikes according to the technical specs. When changing the oil it is advisable to put less than the specified oil capacity and to check the level. The exact amount of oil you pour in is to be judged by the current level shown on the oil level sight window or dipstick.

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