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Thread: Tire showing low pressure after few KMs of ride

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    Post Tire showing low pressure after few KMs of ride

    Hi Friends,


    I am one of the proud owners of RTR.


    I am having this question from long back.


    I am using N2 for my tyres.


    After a few KM (say some 3-4 KMs), measuring the PSI, shows a less pressure.


    Whether, due to the increase in the temperature in the tyre, the density or the pressure is decreased?




    1. If it is so, will it escape from the tyre, I mean the tyre pressure will be reduced easily??


    2. The same thing will happen for the tyre with the normal air


    3. Having a tyre with tube when compared to tubeless, will resolve this problem.


    4. The loss of air is directly proportional to heat of the tyre, or it will lose it molecule after some days/months..




    I got hanged up with this questions. Please help me to understand better.




    Thanks in advance friends...

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    Default Re: Tire showing low pressure after few KMs of ride

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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by nanda.t.kumar View Post
    Hi Friends,
    I am one of the proud owners of RTR.
    I am having this question from long back.
    I am using N2 for my tyres.
    After a few KM (say some 3-4 KMs), measuring the PSI, shows a less pressure.

    Whether, due to the increase in the temperature in the tyre, the density or the pressure is decreased?
    Ans : Temperature of the tire is directly proportional to the air pressure in tire. meaning If the tire is hot, the pressure will increase.

    1. If it is so, will it escape from the tyre, I mean the tyre pressure will be reduced easily??
    Ans: The pressure will not reduce after just 3-4 kms.

    2. The same thing will happen for the tyre with the normal air
    Ans: NO, nitrogen is considered to be long lasting than the normal air(never used myself so cannot verify). but changing back to normal air won't solve anything. The problem is with tire, not the type of air you use.

    3. Having a tyre with tube when compared to tubeless, will resolve this problem.
    Ans: No. You can opt for tube, but if there is a problem with tire, it will be better to replace the tire to a new one, rather than going for tube.

    4. The loss of air is directly proportional to heat of the tyre, or it will lose it molecule after some days/months..
    Ans: Loss of air is directly proportional to the faulty valve, very minute punctures, old tires with cracks in them etc etc. If the tire is good, no minute punctures, no cracks, valves are fine, there is no dust in the valve body. there should be no air loss for 200-300 kms or 2 weeks whichever comes earlier. Even then the loss should be only 2-3 points not more than that.

    I got hanged up with this questions. Please help me to understand better.

    Thanks in advance friends...
    Answers in Red.

    Brother, If your tires are tube less, there is a chance of really tiny punctures in it, which results in loss of air. So the first step should be to get it checked. Make sure that there are no minute punctures in the tire.
    If there are no punctures, check the valves of the tires, if they don't have caps, dust settles in them and while filling the air, this dust goes inside the body the of valve and causes air leak, sometimes even if the valves are capped and there is no dust, they malfunction. Get them checked and replace if necessary.
    The third thing is to check the condition of the tires, are there cracks in the tire, if yes, that may be causing the air leak.

    When you have all these issue checked and fixed, remember to fill air when the tire is cold, ie the bike is not ridden for long. Because if the tire is hot, the air pressure will raise and you will get incorrect reading. then when the tire is cold, the pressure decreases and you might think that the air is leaking.

    Ideally tire pressure stays the same for about 200 kms (atleast mine does) or 2 weeks which ever comes earlier. The pressure should be only 2-3 points below from what you filled.

    Let me know in case you have other questions.
    Divya Sharan likes this.
    I would like to thank my legs for supporting me, my arms for being always by my side and my fingers; I could always count on them.

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    Default Re: Tire showing low pressure after few KMs of ride

    Tyre may not be sitting properly on the lip of the rim. Check for that. If the paint on the rim is chipped at the point where the tyre sits, it may cause loss of air. If so, repaint the rim.

    Sent from my XT1033 using xBhp Connect mobile app
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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by Ankey View Post
    Answers in Red.

    Brother, If your tires are tube less, there is a chance of really tiny punctures in it, which results in loss of air. So the first step should be to get it checked. Make sure that there are no minute punctures in the tire.
    If there are no punctures, check the valves of the tires, if they don't have caps, dust settles in them and while filling the air, this dust goes inside the body the of valve and causes air leak, sometimes even if the valves are capped and there is no dust, they malfunction. Get them checked and replace if necessary.
    The third thing is to check the condition of the tires, are there cracks in the tire, if yes, that may be causing the air leak.

    When you have all these issue checked and fixed, remember to fill air when the tire is cold, ie the bike is not ridden for long. Because if the tire is hot, the air pressure will raise and you will get incorrect reading. then when the tire is cold, the pressure decreases and you might think that the air is leaking.

    Ideally tire pressure stays the same for about 200 kms (atleast mine does) or 2 weeks which ever comes earlier. The pressure should be only 2-3 points below from what you filled.

    Let me know in case you have other questions.


    Hi, Thanks for the reply.

    I have forgot to add some important point to this post.

    I am measuring the pressure in the hot tire (I mean, i am doing it immediately after the ride in the fuel station). But I have noticed as,

    Lets take the following case :-

    Before 1 Month I have checked the PSI for the tyre and it says, some 28 PSI and 17 PSI (for rear and front) and I will fill it up to 35PSI and 25PSI respectively.

    After some 20-25 days or even a month ride, I have checked that it is saying close to 27-28 for rear and some 15-17 for the front.

    All I am doing in the hot tyre and not when the bike is idle//.

    This makes me little confused. Why it is showing less PSI in hot tyre.? Thanks.

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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by nanda.t.kumar View Post
    Hi, Thanks for the reply.

    I have forgot to add some important point to this post.

    I am measuring the pressure in the hot tire (I mean, i am doing it immediately after the ride in the fuel station). But I have noticed as,

    Lets take the following case :-

    Before 1 Month I have checked the PSI for the tyre and it says, some 28 PSI and 17 PSI (for rear and front) and I will fill it up to 35PSI and 25PSI respectively.

    After some 20-25 days or even a month ride, I have checked that it is saying close to 27-28 for rear and some 15-17 for the front.

    All I am doing in the hot tyre and not when the bike is idle//.

    This makes me little confused. Why it is showing less PSI in hot tyre.? Thanks.
    Ok, so you checked the air after 20-25 days. may I know how many kms did you ride in that time period??
    I would like to thank my legs for supporting me, my arms for being always by my side and my fingers; I could always count on them.

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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by nanda.t.kumar View Post
    This makes me little confused. Why it is showing less PSI in hot tyre.? Thanks.[/FONT][/COLOR]
    It's not showing less psi in a hot tire. If you check at home (cold tire),the reading maybe 15!
    1. Follow what both Ankey and Bibhu have mentioned above.
    2. Check tire pressure every week.

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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by Ankey View Post
    Ok, so you checked the air after 20-25 days. may I know how many kms did you ride in that time period??
    Hi, Sorry for the bit delay in the reply.

    Probably I have done some 100 - 200 KMs. I think so.

    Thanks.

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    Default Re: Tire showing low pressure after few KMs of ride

    Quote Originally Posted by nanda.t.kumar View Post
    Hi, Sorry for the bit delay in the reply.

    Probably I have done some 100 - 200 KMs. I think so.

    Thanks.
    the drop in air pressure should be 3-5 points, not less than that.
    My guess is, there are tiny punctures in your tire. Follow the steps given in my previous post.
    Divya Sharan likes this.
    I would like to thank my legs for supporting me, my arms for being always by my side and my fingers; I could always count on them.

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