•Honda NSR250R
Two stroke replica that enthusiasts young people.
Recently, I had the opportunity to test drive on a a 2-stroke replica such as NSR250R and TZR250R. These are famous motorcycles that made the motorcycle scene of the 80's to the 90's vivid and exciting.
2-strokes are two strokes engines which is a replica model that stimulates a racer. In those days, almost every category or major races ranged from WGP of the Road Race World Championship to the All Japan Championship with two stroke machines. The commercial model for public roads are designed by the racer itself by adapting the technology which is the above-mentioned racer replica.
The user's main identity were young people in their teens and 20s and the era when the results in the race were directly linked to the sales of new motorcycles. Young people who liked motorcycles who had themselves projected to a strong manufacturer's star player bought a replica all together, and manufacturers also released high-performance models one after another with prestige. In the heyday of the SP race by the replica, there are dozens of preliminary rounds for the regional championships and so on and it seems that it was already difficult even by going through qualifying. At the weekend, the winning bridge was overflowing with the Takeshi Kogan, and galleries gathered in the corner to see its running. It was a time when the motorcycle was still hot.
As a result of the enthusiasm, frequent occurrence of accidents became a social problem, and horsepower regulation and exhaust gas regulation were strengthened, so the two-stroke replica pulled out and fell temporarily, and by the end of the 1990s it has almost gone extinct. Incidentally, the naked boom came afterwards.
Different dimensions from the current 4-stroke
Going over the history, the 2-stroke replica that we got on after a long time was fresh and fun after all. As soon as entering the power band, the two-stroke engine which accelerates explosively and the ultra compact light body are just the qualities of the racer.
The TZR250R etc which competed with the NSR for the top is the maximum output 45 ps and the dry weight is 126 kg! Compared to the current YZF-R25 at 35ps and 167kg (maintenance weight), I think that it is impossible to imagine the horrible driving from specs.
•YAMAHA TZR250R
I tried running to the extent of trying at the short circuit, but it was quite difficult to bring the accelerator fully open though it is 250cc. It is a completely different vehicle from the current four stroke machines. 2-stroke mineral and noisy sound and dry clutch's sound. The smell of burned 2 stools spit out of the chamber along with white smoke is quite irritating with the rider's combat instinct. It is the world's feeling of the movie "Dirty Heroes".
It is not accepted by the general society because of its radicality, and it is a 2-stroke replica left behind from the era, which can not deny the feeling that a bike = a dangerous thing item has been affixed if it does somewhat, but purely runs fast "I think that there was a certain aesthetics of the machine sharpened with a single point. It was possible to reconfirm it.
It cannot be reproduced with contemporary technology
I wonder if we can manage to revive such a two-stroke replica full of charm to the present age. I think that not only the boys who were former boys. According to what I hear it is popular among young people nowadays that a better two stroke replica is being traded at a pretty high price in the secondhand market. That's because they adore it also.
As you know, two stroke burn with efficiency of four strokes so horsepower comes out. That is why MotoGP initially had two 500cc and 4-stroke 1000cc machines running mixed, so it's a merit that it is compact and capable of powering. However, from the viewpoint of environmental problems and safety, it is impossible to reprint as it is. What I expect is a neo-classic neo 2-stroke replica that has introduced contemporary technology and design philosophy.
Aside from that, Honda has tried on AR (Activated Radical) combustion technology aimed at improving fuel economy and output characteristics of the 2-stroke engine and reducing emission gas. The prototype with the AR engine also completed the PARISDAKA and had released the CRM250 AR which fed back the technology to the commercial motorcycles. Over 20 years since then, I dream that if it is modern technology it will be possible to develop a cleaner two-stroke engine with even higher performance.
Even for the restoration of motor sports
I handed over a hundred steps, I think that it can be a circuit exclusive model. Previously, a famous race official told us, "To raise a world-class racing rider, we need to get on to 2-stroke machine from the age of the child. That peaking power, instantaneous power, agility. He will polish the sensibility as a racing rider".When I think about it, all the Japanese racers who once flew into the world were brushing up their skills while working hard at two-stroke in boyhood.
The two-stroke engine is simple in structure, easy to maintain even by himself, and also has a low parts cost is also attractive. In that sense, I think that there are two stomasins in order to restore motor sports in Japan. Even if it was limited to a closed course.
Both stories of the racing world, 2-stroke machines shine brilliantly in the history of the motorcycle. Its excitement and pleasure are still fascinating to people.
See HONDA Moto Index Page
See Accessories for HONDA NSR250R
See YAMAHA Moto Index Page
See Accessories for YAMAHA TZR250R
