1. Test riding or regular riding of a CBR150R is not reserved for a few prestigious teenagers here. It is open to anybody who wishes to ride this bike.
One of the common exaggerations is its speed. Anybody knowing the primary, 1^st to 6^th and final gear ratios and tyre rear tyre size of a vehicle can easily calculate the theoretical speed of it at a certain rpm in every gear though the actual speed on road is much or considerably lower than that. So, the claim that someone has reached 157 kmh speed is naturally questioned as CBR’s engine rpm at that speed must be above 11700. There is another fact that its engine hesitates to rev over 8500 – even on level road.
Other claim is about the smoothness of the bike above 7000 rpm. At that rpm the bike will be at about 90 kmh speed. Through which city or road with moderate traffic can you move at this speed? This is why I said earlier that you are not ready to admit the limitations of this bike which basically is designed for tracks where frequent gear shifting is not necessary.
2. The size of the discs or whether both the brakes are discs or drums alone is not deciding the braking power. It depends many other factors like quality of the materials, cleanliness of the contacting surface of the pad and rotor, air or moisture in the brake fluid, power applied on it, kerb weight including the weight of the riders etc. etc. Instead of pointing out these possibilities, you, some of the CBR150R owners as a group, are trying to attack anybody pointing out the defect of the brakes.
3. “Closed Loop Fi” is frequently heard here. Can you please explain it in detail or to sufficient level to me and others who do not know what it is and how much fuel it saves?

1. I was among others who raised doubts about the capabilities of this bike; it is true. But those questions of mine are still not answered.
2. I cannot understand what you mean by these words: “Don’t make another mistake”. A mistake in my life or in saying something about CBR150R?
3. Up to this moment I have not given my power of attorney to anybody to decide which bike to buy or not to buy for me. More than that, all those participate in discussions about any bike are not owners of that bike. Further, asking doubts or posting comments about any bike is not prohibited here on the basis that that fellow does not own that bike.
Nothing about your comments on stupidity or wiseness of people deciding to buy this bike or about the impact of the claims of those who use this bike on them.
Finally, no more commends on this subject from my side.

There are two types of FI, open and closed loop. Open loop Fi is the kind which runs a preset map, more like a futuristic version of the carb, where as closed loop fi is the kind which runs realtime it takes reading from the MAF and Lambda sensors and provides adequate fueling based on its readings.

So, you expect to come here, make some claims, all being negative about the bike, and just leave.??

With all those you are saying, admit it, you see this bike as the one 'only' with limitations as this is overpriced. I accept the fact it is overpriced.
Comment about the performance of the bike taking off that pricing point from consideration.

Moreover, you contradict your own claims. You said you can't ride this bike at 7k rpm in normal roads and the same you claims that this engine hesitates to rev beyond 8.5k rpm?? LOL!!
So, you should be owning one?? (Reframing as you don't like 'that' particular question asked to you) Out of your minds, eh??

I do accept that the claims of some teenagers here are for certainly false ones. Some even w/o a valid driving license are owners here.
So, if you wanna bash, do it about the owners, and never, and I remember I have already told you once, in a real nice way, don't come here bashing the bike.

Am a good 90 kilos and my bike unexpectedly has lifted the rear wheel while braking, several times.
My brother, who is around 60kilos, also have said me, he had popped a stoppie unexpectedly.

Regarding smoothness of the bike at 7000rpm, I personally, not once, have ridden it continuously for a good 1 hour keeping the RPM beyond 9k, and I felt comfortable.
So, this is a bike, that can do around 80% of its redline limit, for hours and at the same time make you feel comfortable.
By comfortable, am referring to just shrills of vibs at handlebars and that's it.

Am not targeting everyone who talks about this bike, but the ones, who can't still admit the capabilities of this bike.
You raised the questions about capabilities of it, and I hope I have answered that in my previous replies to you.
And, if you still have any, I am glad to answer those too.
But, don't post any false claims that braking is blah blah, engine is not smooth, it can't rev up.
Accept the capabilities of this 'overpriced' machine!

It seem's the comments of 2-3 people have really irked you. You seem to have been on this forum for a while, from the responses people were giving, I think you should have realised which to consider and which to ignore. No-one is attacking you. Though yes, i do admit, people here have been too intent on proving their bike better than leaving actual facts. Hence, I hope my reply helps you out.

1) You are right. 157kmph cannot be reached by this bike. It will show that speed due to speedo error on someone's bike though (its a possibility). The bike will top out at around 140-142kmph.
2) At 90kmph the bike is at 6500rpm in 6th gear. As for the smoothness of the engine, it is a fact. You will not feel any (very very less) vibrations till around 9500rpm. The engine does not hesitate to rev beyond 8000rpm. Especially on level road. All the owners here will agree that sometimes you dont even realise when your near 11000 rpm when your pushing the bike. I only realise it because at 11000rpm the exhaust note changes considerably. As for where this bike can be used at this speed, il only say that those who want will use it. They may or may not be endangering their lives, but it can be done.
3) Yes, this bike is designed for the track. And contrary to what you think, frequent gear shifting is needed on the track, as you need to be in the right gear for the corner. To ride this bike fast, you WILL have to change gears frequently to keep it in its powerband.
4) As for the brakes. They might not be the best compared to the best (R15, Ninja), but they do their job pretty well. As you say, if this bike was designed for the track, dont you think they would have made sure that the bike had good brakes ?? That said, it also depends what people are used to. I do find the front brakes spongy, something I have mentioned on this thread before. The fluid is transparent ie its DOT3. Therefore better braking performance is possible by upgrading for those who want it.
5) As for closed loop FI system. Im sure you know that how much fuel is saved depends on a variety of factors. What you should notice here is that, its probably the only 150cc in India to have this technology. For Honda to have offered this in this category of bikes is impressive. Im not surprised owners here keep pointing it out. Its natural. Instead of questioning how does it help and whats the point, we should rejoice as bikers that companies have started offering good technology in this price bracket !


I hope this satisfies all your queries. If there are any more questions please do not hesitate to ask. As far as you comment about teenagers goes, im barely out of my teens, but I know which replies to filter out quietly and which to take heed off. If you made your posts a little mild, im sure you'l find people alot more co-operative.

As far as I have learned, DOT 3 is coloured and DOT 4 is colourless.
My source is this thread in our forum : http://www.xbhp.com/talkies/do-yours...ng-rtr180.html
Am I right?? Any sure facts??

Honda CBR 150 R

Bro why???? You signed up to xbhp only for bashing CBR 150 R???? I have seen your post from the very beginning I started following this thread. If you don't like just keep it with you. May be you got a faulty CBR.. First of all I doubt your ownership. I don't think you own this bike and moreover ever driven it... The point you said that it vibrates at 7k rpm proves that you have never driven CBR.. Am a R15 V 2 owner, but still I love CBR because of its silky smooth engine. My kind request don't ban another owner bcz of your stupid bashing. They need help from here and you stay here just for telling negatives about the bike....

Cheers

Naah, not quite.

Brake Fluids are available in various colours like Brake Fluid DOT 3 is available in clear, Pale Yellow, Blue & Crimson Red colour, similarly brake fluid DOT 4 is available in Clear, Pale Yellow & Crimson Red colour, brake fluid DOT 5.1 is available Clear, Pale Yellow & Blue colour. Brake Fluid DOT 5 is available in Purple & Violet colour so colour is not a criteria to distinguish between the different types of brake fluids. The color is added in brake fluid to detect the leakage easily and color does not effect the quality of brake fluid.

Source - :ifferent types of Brake Fluid ::

Control systems

Open loop control system

If in a physical system there is no automatic correction of the variation in its output, it is called an open loop control system. That is, in this type of system, sensing of the actual output and comparing of this output (through feedback) with the desired input doesnot take place. The system on its own is not in a position to give the desired output and it cannot take into account the disturbances. In these systems, the changes in output can be corrected only by changing the input manually.





These systems are simple in construction, stable and cost cheap. But these systems are inaccurate and unreliable. Moreover these systems donot take account of external disurbances that affect the output and they donot initiate corrective actions automatically.

Examples of open loop control systems:

1. Automatic washing machine
2. traffic signal system
3. home heating system( without sensing, feedback and control)

Any non-feedback control system can be considered as a feedback control system if it is under the supervisio of someone. Although open loop control systems have economical components and are simpe in design, they largley depend on human judgement. As an example, let us consider a home furnace control system. This system must control the temperature in a room, keeping it constant. An open loop system usually has a timer which instructs the system to switch on the furnace for some time and then switch it off. Accuracy cannot be achieved as the system doesnot swith on/off based on the room temperature but it does as per the preset value of time.

Closed loop control system

A closed loop control system is a system where the output has an effect upon the input quantity in such a manner as to maintain the desired output value.

An open loop control system becomes a closed loop control system by including a feedback. This feedback will automatically correct the change in output due to disturbances. This is why a closed loop control system is called as an automatic control system. The block diagram of a closed loop control system is shown in figure.

In a closed loop control system, the controlled variable (output) of the system is sensed at every instant of time, feedback and compared with the desired input resulting in an error signal. This error signal directs the control elements in the system to do the necessary corrective action such that the output of the system is obtained as desired.

The feedback control system takes into account the disturbances also and makes the corrective action. These control systems are accurate, stable and less affected by noise. But these control systems are sophisticated and hence costly. They are also complicated to design for stability, give oscillatory response and feedback brings down the overall gain of the control system.

ha ha! I too googled it and ended up in the same site. Saw the table and figures and closed the page.
Though, figured out the answer from some other page.
Anyways, appreciate the reply!

@jomindolges : Don't mistake me for pointing out.
Your previous post makes no sense, atleast to me!!
Its vague on its own. Closed loop Fi is an example of Closed loop control system.
Exact explanation for the former 'll be more suitable rather explaining the later.
Try editing it.

That post is the simplest explanation of open and closed loop control system ... Its only for punarvasu

Explanation of PGM-Fi given by Divya Sharan was more than enough ... But punarvasu said that he didn't get the content of that ..

He says that a lot!!!

My bad folks ! So which one do we have in the CBR ?

Mea culpa, mea culpa, mea maxima culpa.

I was utterly frightened after reading it and hence kept away from here. But now I am a little more courageous enough to ask this question: If I come to this thread to bash the bike as you said, what can you do, my dear young Praveen?

Anyhow, thanks for the greatness you shown to warn me again. Please wait until I find out a place to hide again safely.

Everybody (watched the movie ‘where the green ants dream’? It is a nice movie) has the right to dream.
Let them do whatever they like to do. If their parents do not care, whoever else cares?

Thanks. I am sorry that I forgot to whom I am speaking.

I did never mention its weak brakes. But now I am absolutely sure that I am talking to an expert professional racer. Thanks for sharing your knowledge, especially about the brake up gradation by filling another grade of brake fluid, if that is what you meant.

Almost. And your kind words are encouraging me to ask more questions but you have cleared almost all my doubts now. Thanks. Please let me wait for another doubt.

Take it easy; it cannot be considered as a personal fault. As we grow up, we all becomes matured. Yet there are rare exceptions.

Thanks for spending a few seconds of your precious time to copy paste it. But you didn’t mention the original source. Do it now.

I didn’t say anything like that you claim that I have said. I am of a very low IQ and hence cannot understand anything about anything. But I am honoured by this special consideration of a worthy person like you towards me. I am proud of it.

I am enlightened and nothing else is left unlearned now and the aim itself of my birth is fulfilled. Thanks again for raising me to such a level of blissfulness.

If I remember correctly, the credit goes to PSRji. Am I not I correct?

Actually punarvasu was one of the biggest reasons this thread was locked initially. But as he said, he is now courageous enough. Bravo Mr. punarvasu, how did you do that?! Secondly, he carefully avoided all those sentences from Lenov where he explained how he has felt that the engine is smooth around/uptp 11000rpm, pretty evident from the sarcastic replies he has posted above. Mr. Punarvasu also manages to write in bold "If I come to this thread to bash the bike as you said, what can you do, my dear young Praveen?" Wow, and he feels that he was threatened!! I just hope that moderators and xpolice is watching this language!

Also, he says "I am of a very low IQ and hence cannot understand anything about anything." but at the same time he is intelligent enough to judge the performance of the motorcycle just by looking at its gear ratios and tyre patterns etc. Wow again, I think he is confused about himself. Are you, punarvasu? And I just cannot wait for Mr. punarvasu to come back, pick my post up line by line and give some sarcastic replies like he did above. That will be fun to read. My pop corns and cola are ready in these hours at night Nobody hates questions, but your attitude is funtastic!

For now, just one question to punarvasu. How do you know that CBR150R's engine hesitates to go above 8500rpms (especially given the fact that it revs more freely than its closest rival)?