My eight year nephew once asked me, " Uncle, if Superman and Bruce Lee fought, who would win?" Your queries remind me of that time.... reply, in a sentence, "Difficult to answer"....

Don't get offended. Am only kidding.... It's nice to have fresh thinking in this thread.. Popcorns Out, Adjust cushion..

Let me explain to you the concept of a sports bike.
It needs to maintain high amount of speed for a longer period of time.The engine needs to be strong and powerful to run on high rpms. It undergoes various stresses while turning and accelerating out of corners. Hence the frame must be strong. Last but not least it is a faired bike. So that it can cut through the air effortlessly.All to achieve lesser lap times and win races.
CBR 250 is a sportsbike.

Comparing it to a streetbike (enfield) is not a fair thing. The amount of research that goes in to making a sportsbike is way way more than an archaic Enfield. Try cornering on an Enfield and you will know. Can you think of knee scraping on a Bullet 500?

These are the reasons why it costs more than a car and is little less efficient than a streetbike.

Trust me, I've scraped both my knees, shins, elbow and cheek on a Bullet 500

Thanks Satya for your description of a sports bike. I am sorry but the fuel efficiency part is not sinking into my mind. On the road, Classic has bigger cylinder, weighs more, produces more power all at lesser fuel than CBR. Your description of the CBR/Sports bike does not seem to explain this. Of course, I understand it is a sports bike vs street bike. But why the former should burn more fuel for the same or poorer on-road performance?

if fuel efficiency is ur main concern... u've chosen the wrong bike.

same or poorer performance? nooooooo.

there is speculation that the CBR250R will accelerate to 80/100kmph faster than the Ninja 250R.

now... imagine a bullet beating both. - unthinkable.
poorer performance compared to both bikes? - impossible.
same performance compared to both bikes? - not even close.

will prolly be left way back in a different zip-code too.

I knew of the fuel efficiency of the CBR and is not my concern. Had it been, I would have married the legendary splendour
I am just trying to understand why is the CBR guzzling more fuel for lesser bhp output than the Classic. Just this.

I dont have much knowledge about the engines.

But simply if you need more and a sudden acceleration, for that you need bigger blasts in the engine and that need more amount of fuel similarly a bomb or nuclear reactor.

Senior members please put a light on that.

To add to what the others have mentioned regarding fuel efficiency.

Revvs :- The classis revvs way way less, when compared to the CBR.
Tyres :- The classic has thinner tyres compared to the CBR.
Front :- 90/90 vs 110/70
Rear :- 120/80 vs 140/40.

Allow me to answer... Though my answer would not be too technical to digest but will try to make it as simple as possible.

1. I am disappointed about the mileage claims of the CBR250R which is about 25-30 kmpl. At this figure, the bike is touted as highly fuel efficient!!
Recently, I read reviews of RE Classic 500 in some auto sites and found out that mileage of this fat bike has been found to be the same or slightly better at 27kmpl.
Now, I am jealous about the Classic that despite its 20kg excess mass, badly accused archaic engine technology can beat the CBR on mileage front and on power front too with 27bhp.
Could anyone explain what could make the bullet so envious to me please?
@Satyen: Good question! The RE does 27BHP with a bigger capacity engine. The cylinder of the engine is like a small barrel. It sucks in the fuel and air, is squeezed and burnt in a tiny area which people refer as 'compression' and this burning of the mixture generates the power. The exhaust also helps in sending back unburnt mixture back to the cylinder.
How much fuel it sucks in, how much compression it has, and how effeciently could it burn the fuel and ofcourse the size of the cylinder all play a vital role in deciding how much the bike can run.
The RE eats more, but doesn't process it well, despite its bigger stomach it generates as much power. The CBR eats effecient, doesn't waste a lot and generates as much power. Signifying that it uses the 'food' well.

Beyond the basics of eating enough and still being able to perform well, it goes one step beyond and ensure food isn't wasted.. So the engine is healthier and wouldn't need a stomach wash over a period of time like the REs mandate.



2. I have read in this thread few pages back that it is now standardized that 250CC bikes have to be single cylinders. Any idea whats the purpose of making them singles?
@satyen: this is what stupid posts do! Its not necessary!
In simple terms a single stomach is easier to manage than 4 smaller stomachs! So its easier to manage, easier to build and maintain and hence single cylinder. One could still make a 6 cylinder 250 too!
For a manufacturer in this segment for such small eating capabilities it rather have ONE tiffin rather than 4 small tiffins to carry the same food!

3. Lastly, a layman's question. Please do not kick me out of here for this. Why shoould a bike cost more than a car any day? A car looks to be taking in more of everything than a bike in the manufacturing process - more materials, more time, labour etc etc... So, why should Honda CBR250R or any other bike of this class should cost more than say a TATA Nano or a similar small car?
@Satyen- Beats me! Which is why I would want to wait for a Bajaj or TVS to respond to this product. It may not be as effecient, but it would be VFM enough!


Ps: I know I can't apply for a job as a physics professor with these examples, but I hope they helped!

@satyen:- you could get into teaching man, nice explanation

ROFL.... this thread is getting hilarious by the day and by the post...

Awe common! Atleast be fair! This wasn't a mumbo jumbo sermon! This should help the ones here, and the ones who come back after 48 hours into not throwing jargons! Seems funny, but isn't intended to be like that (unless ofcourse you visualized it)

welcome to xbhp ... wt a concept u have ..till now i though R15 is good look and reasonable cost ... hmm... i think the scene will change once other players pitch in with there low cost 250's

as for H250 .. i'll check once its on the road .. and i think H250 will give some 30kmpl i hope

Now when did stomach, digestion and tiffin end up in physics ... Ah, Who cares Healthy post finally!

One of the best replies I have ever seen. Funny but bang on target..

@Satyen: I enjoy reading your replies buddy. What is your motivation?