Re: Honda CBR 250R

Thanks for the reply. Was worried if it was not the norm and if water might leak inside.

Re: Honda CBR 250R

UHey please can someone help me with this?

I am not saying that the torque is low, i am saying that the vibrations feel somewhat higher.

Also, at the start of the day, the engine temperature reaches 3 bars just after driving a few hundred metres. Although it never crossed 3, but it rises very quickly.

Re: Honda CBR 250R

Did you check the earlier reply ?

Since its a new bike, bit of vibrations here and there are OK as the engine and the parts are setting themselves and please don't say that the vibrations are unbearable.

If the vibrations aren't unbearable, perhaps you are expecting more from a single pot to give you smoothness like inline 4. Little vibrations are OK, MAN!!!

Did you check the tyre pressure or for information did you get the tyres filled with the recommended pressure provided on the swingarm ?

How much do you weigh and what is the speed at 4-5K rpm. ?

Edit post :

Bhai, what kind of reply are you expecting. You should be aware that the bike is in run-in period. Mechanical Parts are setting in as per the tension so its going to heat up soon, once you complete your first service then notice the change. And the temp rising to 3 bars immediately, for how many minutes are you idling the bike and those few hundred metres are in full traffic or the roads are empty ?

Cheers,
Sanjay

Re: Honda CBR 250R


It is advised to do gradual acceleration and deceleration during the Run-in period as per Honda. And there is no rule like we must ride under 5.5k RPM. And for the vibes, yes even i had some during my run-in period. CBR's true torque kicks in beyond 6k rpm.And for the temperature, as long as ur temp bars are in 3, your engine is happy and safe. So complete your run-in period. Just enjoy your ride, vary the rpm and don't restrict under 5k rpm. After your first service, you can see the difference.

Re: Honda CBR 250R

To sum it up in a single word, yes, at 4 to 4.5, it's the sloppiest, especially during traffic jam situations. The torque is there, but it comes way up, not low down, so you'll have to adapt to that.

Secondly, it does feel the acceleration is sloppy especially on a new CBR. Give it some time for the engine to bed in, remember, it's new bike, tight tolerances. The real deal of the CBR is always felt post 6k RPM after which the attitude of the bike changes. Now, it doesn't mean you don't have to be too much throttle conscious, you can rev the engine to 6.5 to 7k occasionally with absolutely no problem, the key here is variation in throttle response, not a fixed RPM, during running in/bedding in.

During this time, you might observe the engine heating up quite rapidly, the heat can be felt through lets at times, this is completely normal. A newer engine works harder, which means more heat, and that's why it's imperative to vary the RPM so that the parts bed in good and free up over time.



Maybe you haven't accustomed to it. The CBR itself sounds like knocking especially at around 3 to mid 4 to 5k RPM. One way to see if it if you're having shim noise is to check the bike when it's cold, that way you can clearly differentiate between the shim noise/knock. What I am sharing with is my perspective, it's your bike, if you feel there is drop in performance or abnormal noise, which you haven't observed before, the discretion is ultimately up to you.


Cheers!
VJ

Re: Honda CBR 250R

Temperature bars will reach 3 in few 100 hundred meters. that's quite normal. Need to worry only if it goes above 3 bars.

Re: Honda CBR 250R

100 mph on a quarter liter bike?. Protective gears will give up after certain speeds, because the impact will be in the order of several tonnes of force, in this case, about 20+ tonnes of force can be expected if say the rider with bike hits a tree or a car, equivalent to a truck ramming over. At such speeds the pressure is enough to squeeze our internal organs and the armor itself.

Again, a good cruising speed for this bike and our road would be 110-120 kph which it can do easily and safely. Bigger bikes, get bigger dual disc and can help reduce the speed more rapidly. One should not try to ride faster just because of have a good riding gear. At such speeds, riding gear can do sadly nothing literally, but get smashed along, especially in INDIA anything can happen to your well known road

----consecutive posts auto-merged-----

Yes, a lot of factor needs to be brought in here. But I don't think any bike (Purely on STOCK) can be ridden more faster than what the manufacturer suggests unless you void their ideal conditions. If the manufacturer suggests as 146 kph, then that would be the ideal case considering minimum amount of fuel, average rider weight say 60KGs, etc. Also the manufacturer might not consider the speedo error.

To get a little top end, you need a less windy day, excellent road, a degree of inclined slope, sprocketing a bit and finally the less weighing rider. The [MENTION=51754]theironhorse99[/MENTION] well explained it.

Re: Honda CBR 250R

Though I do not want to drag the topic and dilute the essence of this lovely 'ownership' thread; I'm disturbed at the claims of such high speeds on public roads.
CBR has the last rev at 12,500 RPM. It does exactly 16 kmph per 1000 RPM. Hence, top speed achieve-able with this math = 200 kmph.

Now, a stock CBR doesn't red-line in 6th gear. I haven't seen one. It does somewhere around 9,500 - 9,600 RPM or so.
Now the math says, top speed achieve-able = 152 kmph (+-2 kmph).
Accounting for 5-8% speedo error, top speed achieve-able = 143 to 148 kmph (roughly) -> that too in ideal conditions, discounting air pressure, bike condition, wind speed etc.

-----------------------
Now, whether you wear an Ironman gear or kurta pyjamas at 100 miles an hour, it is not going to help! In fact, the gear may help keep the organs from spreading on the road in case of a mishap.
Such riders are a danger for all road users sharing the same space at that point in time.

A humble advice to the original poster, you have a race-track in the form of BIC, please use it for high speed runs.

Just because the bike can do 90+ miles an hour doesn't mean one should do it, the first query that should come to mind is:
"Will the bike stop within a limited (reasonable) distance if brakes are applied due to some emergency? (Pedestrian/dog/cattle/huge pothole/truck/bus etc)"

Re: Honda CBR 250R

Forget the math. Now don't get me wrong here, you could have intervened when you spotted the topic earlier itself right, DS, I mean I see you liking posts after posts, but now it's all just a moot point with this post. Let's restrict here.

As I said earlier, no two bums are alike and no top speed is the same, hope people get this fact. And anymore topics on top speed will be deleted.

Thanks!

Cheers!
VJ

Re: Honda CBR 250R

Only thing you can do is it replace with fellow CBR guy who has silver wheels.
I already painted mine to black and gold so I can't now

Re: Honda CBR 250R

Extremely sorry, for I couldn't intervene earlier. I had to make a big post and I couldn't do it on the app. Got free now and replied (via PC).
Also, IIRC; I liked 2 posts; one from Aman about the speedo error thingy and another just above my post.
The essence of both posts was the same as mine!

Anyways, it's better we keep the clutter out of this thread.

Offence? None taken!

Re: Honda CBR 250R

I got the coneset nut tightened and it did reduce the thud sound a bit but not completely, will get it greased and tightened again in next service. Talking about the top speed the speeds i quoted were speedo indicated and as you are aware CBR250 has an error of ~6kmph post 100kmph (while ZMR had an error of 1kmph above 100kmph tested on a gps) which means the true speed was just 130 in 5th gear. For a sports tourer i expected a true top speed of 145-150 kmph, even RS200 does a true 143kmph am i expecting too much out of CBR? I feel i can breach 150kmph if the bike is in good condition

Re: Honda CBR 250R

I think you didn't read the posts about top speed from the mods.

Re: Honda CBR 250R

A CBR would do those speeds you want if you've decided to be suicidal.
Trust me, the wind noise and stress over 120 clicks would tire you out in no time. Also, such high speeds are plain lunacy!

Re: Honda CBR 250R

RS weighs just as much as CBR250R, AFAIK. RS200 weighs 165 kg.