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Looking at the detailed specifications of both motorcycles Triumph Rocket III and Yamaha Fazer FZ-1 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. The long personal list of favourite motorcycle models can be narrowed to just a few ones after comparing their pictures and technical specifications. Then these bikes in question could be best explored on the road where handling, performance and comfort of sitting position can be best felt in action.

Triumph-Rocket III   vs   Yamaha-Fazer FZ-1
Picture of Triumph - Rocket IIIPicture of Triumph - Rocket III
Triumph manufacturer Yamaha
Rocket III bike name Fazer FZ-1
Cruiser mootorcycle type Sport touring
2004 year since 2006
250 / 97 / 117 cm overall size L/W/H(cm)206 / 65.5 / 112.5 cm
2294 cc engine displacement (cc)998 cc
Multipoint sequential electronic fuel injection fuel supply method Fuel Injection
8.7:1 compression ratio 11.5:1
101.6x94.3 mm bore and stroke 77x53.6 mm
140mm (5.5 inches) ground clearance 135mm (5.3 inches)
5.9litres (6.2 quarts) engine oil capacity3.7litres (3.9 quarts)
24.0 litres (6.3 gallons) fuel tank capacity 20.0 litres (5.3 gallons)
220 km/h (136 mph) top speed246 km/h (153 mph)
140 hppeak horsepower 150 hp
200 nm (147.5 ft lbs)max torque 106 nm (78.2 ft lbs)
320 kg (705 lbs) dry weight204 kg (450 lbs)
350 kg (772 lbs) curb weight (wet weight) 220 kg (485 lbs)
43mm inverted forks front suspension telescopic forks with 130mm travel
chromed spring twin shocks with adjustable preload rear suspension link type swingarm with 130mm travel
150/80-V17 front tyre size 120/70-ZR17
240/50-V16 rear tyre size 190/50-ZR17
5-speed wet multi plate clutch transmission type 6-speed
inductive type ignition via electronic engine management and electric starting ignition / starting Electric
2x320mm discs with 4-piston calipers. ABS fitted as standad. front brakes Two discs x 320mm
Single disc which is 316mm in diameter with 2-piston caliperrear brakes One disc x 245mm
Shaft drivefinal drive typeChain drive
Liquid coolingcooling typeLiquid cooling
6.50 l/100km (36.2 mpg)fuel economy (consumption)6.25 l/100km (37.6 mpg)
technical specifications of Triumph Rocket IIIsee data separatelytechnical specifications of Yamaha Fazer FZ-1

The bigger engine size of Triumph Rocket III in comparison to Yamaha Fazer FZ-1 doesn't mean that it is more powerful or better performing bike. The second bike has the advantage of greater compression ratio of 11.5:1 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 the mixture of air and fuel in the combustion chamber has bigger pressure (higher compression ratio) when it is ignited then it burns more effectively and therefore these bikes tend to have better fuel economy (comparing engines with equal displacement).
The bike with a better fuel economy is the Yamaha Fazer FZ-1 which can travel 37.6 miles with one gallon of fuel. Triumph Rocket III on the contrary can travel 36.2 miles with a gallon. Measuring the fuel economy in mpg shows how many miles of ride are covered by a gallon of fuel and measuring in l/100km shows the average fuel consumption in litters for every 100 kilometers riding.
tire sizes The producer of each bike specifies the sizes of its front and rear tyre. The right choice also depends on your style of riding, whether you are speeding and riding agressively. The code designators located on the side of each tires is something that you should be aware of if you want to find proper tires for your bike. The first number is the width of the tire 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. Since many internet stores are offering motorcycle tires it is an easy way to get proper pair of tires online at reasonable price.
Triumph Rocket III has a better ground clearance of 140mm ( for Yamaha Fazer FZ-1 it is 135mm). The ride height is the other name of the parameter ground clearance which refers to the measure from the tyre base to the underside of the cassis of a motorcycle. To say it shortly, this is the smallest of the measures between the road surface and any mechanical part of the motorcycle.
Comparing the top speed values of both motorcycles we can see that Yamaha Fazer FZ-1 is the faster one with 246km/h. As per the technical data of Triumph Rocket III it would be behind it on the highway with 220km/h. However sources may vary as to whether these top speed parameters are precise or only approximate.Liquid cooled engine of a motorcycle
Triumph Rocket III and Yamaha Fazer FZ-1 are both 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 main principle is circulation of the liquid between the radiator and the engine. 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. However the water pump, the thermostat, the radiator and all the linking gear makes it a bit more complex.
As per their technical specifications both motorcycles have different types of final drive implementation.
motorcycle driven by chain The final drive of the Yamaha Fazer FZ-1 is chain. Chain final drives are known for their simplicity and efficiency in driving power from the engine to the rear wheel of the motorcycle and are one of the most popular final drive options by far. The down points of the chain drive are the frequent maintenance required as it needs to be regularly cleaned and oiled. Besides it is not as smooth as a shaft or belt drive.The Triumph Rocket III is driven by shaft.
Compression ratio Imagine an engine's piston is at the bottom of its stroke (step one) and moves up compressing the gas in the cylinder till it reaches its top position of the stroke (step 2). The compression ratio is the ration of the volume in step one over the volume in step two. Based on the information from the technical data of the motorcycles the values are accordingly 8.7:1 for Triumph Rocket III and 11.5:1 for Yamaha Fazer FZ-1. In other words it represents how tightly the mixture of fuel and air in the combustion chamber is pressed before the ignition. Higher compression ratio means bigger pressure of the fuel/air mix in the combustion chamber and better efficiency achieved of its ignition.
The good quality of the engine oil is an important factor in keeping the motorcycle in peak condition. Synthetic engine oils are considered the most technically advanced one and are more expensive than the mineral oils which come at lower price. 3700 miles (6000 km) between oil changes is widely accepted rule. Synthetic oil can be changed less often though. Depending on the oil filter it needs to be replaced on each or every two oil changes. Both motorcycles have different oil capacity according to the technical specs - 5.9 litres for Triumph Rocket III and 3.7 litres for Yamaha Fazer FZ-1. This oil capacity values are with informative purpose only. The best way to pour the exact quantity of oil is to observe the dipstick or the level sight window.

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