Summary Reader Response Draft 1

The Kawasaki H2R produced in Tokyo, Japan was first released in 2015 with a limited amount in the world. Based on the website (Kawasaki Ninja H2®R | Closed-Course Hypersport Motorcycle, n.d.), the motorcycle has a 998cc inline-four-cylinder liquid cooling engine which dished out a staggering 310 horsepower. This unprecedented power output can only be made possible through a system of finely-tuned and carefully crafted high-quality components. It has a supercharger which is specifically chosen for its high-rpm performance, as it is incredibly efficient at compressing air while minimizing heat. This supercharger was designed to match the engine, allowing high-efficiency operation over a wider range of conditions that could not be provided by a regular supercharger. Also, according to this website (Ninja H2R | 2023 | Kawasaki, n.d.), it says that it has a unique set of transmissions called the Dog-ring Transmission which cannot usually be found in other motorcycles on the roads. This was developed with feedback from the Kawasaki Racing Team, to facilitate smooth, quick shifting and therefore this dog-ring type transmission was selected. Hence, these features make the bike have high horsepower which is able to do at high speeds. The Kawasaki H2R is a powerful motorcycle with high-end parts such as a Supercharged engine, a dog-ring transmission. With these features, it will give the rider a competitive edge over their opponents to dominate on the track when racing despite it being not street-legal.


According to the HowStuffWorks webpage (Harris & Hall, 2021), the supercharged engine increases the intake by compressing air above atmospheric pressure without creating a vacuum. This will force more air into the engine, which then more fuel can be added to the charge, this will provide a boost which results in the increase of power of the engine. Getting more fuel into the charge would make a more powerful explosion which then increases its horsepower by 46 percent and torque by 31 percent allowing the rider to go at high speeds to overtake other riders easily.


According to the CarThrottle webpage (Wheels Nuts, 2016), unlike other motorcycles that use a synchromesh gearbox, the H2R uses a Dog-ring transmission which can normally be found in F1/MotoGP. This unique transmission has small dog teeth that are engaged to lock the two gears together. The gears have fewer, much larger dog teeth which results in the gear being fully engaged or fully disengaged. The advantages of this transmission allow gear change to be completed quickly by briefly blipping the throttle with minimum use of the clutch, which benefits the racer as the engine will be able to power the wheels for a longer time.


According to the CarThrottle webpage (Wheels Nuts, 2016), the dog ring gearbox is difficult to use in urban traffic or driving in the city as the user must manually match the speed of the gears quickly to prevent the dog teeth from clashing with each other else it will damage the teeth causing it to wear faster. Also when changing gears, it will produce loud and distinct gear engagement noises, which can be annoying for some users. Therefore, the synchromesh transmission would be ideal for the road in traffic as it offers simpler operation and more leeway when it comes to shifting gears and it tends to last longer.


According to Ridehow (Smith, 2021), its gearing, suspension setup, and chassis are optimized for high-speed track performance and provide exceptional handling and stability. The bike can reach high speed which exceeds the speed limit on most of the streets around the world, this will impose a risk on the rider and the rider’s surroundings on the road. Smith also said that the bike exceeds the permissible noise level for road vehicles which is disruptive in residential and public areas. Most importantly, it does not have headlights, taillights, turn signals, and other features to ensure safety for road usage. Therefore, it was decided that this bike would not be made street-legal.

In conclusion, This H2R bike is a very powerful and unique bike that is built solely for racing and has all high-end/technology parts that can give riders an edge over their opponent. Unfortunately, this bike is not made street legal as it does not pass the safety requirements for it being on the streets and the noise that it produces.

















REFERENCE


https://auto.howstuffworks.com/supercharger.htm#:~:text=Supercharging%20adds%20an%20average%20of,so%20it%20can%20operate%20optimally.



https://www.carthrottle.com/news/dog-ring-gearbox-explained


https://www.kawasaki.com/en-us/motorcycle/ninja/hypersport/ninja-h2r


https://www.kawasaki.eu/en/Motorcycles/Hypersport/NinjaH2R-2023.html#productspecifications-c22d228d08-item-47f14c8015-tab


https://riderhow.com/kawasaki-ninja-h2r-street-legal/



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