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Thread: The Tyre Pressure Thread!

  1. #21
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    Default Re: The Tyre Pressure Thread!

    Quote Originally Posted by Indu View Post
    Model - Jawa 250 - 353/04
    Size - Tyre - F - 3.25 x 16
    Size - Tyre - R - 3.25 x 16
    Pressure - Tyre - F - 18 PSI
    Pressure - Tyre - R - 21 PSI, 28 PSI (with pillion)
    Above are as per JAWA manual, but in petrol bunks charts there are varied notification like F=20, R=30. May be the experts can point out which is the correct one
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  2. #22
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    Default Re: The Tyre Pressure Thread!

    The PSI provided by you from Jawa manual is what I am also following, but feel the tyres are under inflated, as you said may be I will also let the experts confirm..

  3. #23
    Moderator B7ACKTHORN's Avatar
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    Default Re: The Tyre Pressure Thread!

    Quote Originally Posted by dustom_99 View Post
    I work for auto manufacturing giant and have worked with other similar oem previously.
    The fact is most of the manufacturer recommend conservative tyre pressure as max/ std pressure.
    All automotive tyres for road going vehicles are tested at least 55psi. They need to provide safe n reliable operational life atleast up till 55psi.


    Sent from my Micromax A116 using xBhp Connect mobile app
    You are absolutely right. The advice to inflate to the maximum pressure is to reduce the running temperature and extend to life of the tire, whereas considerable low pressure aids in good grip and increased wear due to sidewall flex and increased running temperature. If everyone were to inflate the tire at over and above their recommended pressure especially motortcyclists the consequences will negatively influenced.

    I never recommend anyone to run on a lower PSI, but the advantages of running over little PSI than the recommended level will aid in good feel and good grip. Too much inflation will negatively impact grip, with the only positive being, increased tire life.

    An overinflated tire is equally worse as an underinflated tire.

    Cheers!
    VJ
    Once upon a time, a guy asked a girl 'Will you marry me?'
    The girl said, 'NO!'


    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


    THE END

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    Default Suzuki GS150R Tire Air Pressure

    Suzuki GS150R
    Tire(Tyre) Make Size AirPressure(PSI) Solo Air Pressure(PSI) with Pillion
    Front MRF NyloGrip Zapper-FS 2.75-18" 42P 25 25
    Rear MRF NyloGrip Zapper-Y 100/90-18" M/C 56P 28 33
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    Default Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Hi guys,

    Please let me know the proper tire pressure for following tire specification.

    2.75 -17 front
    100/90 -17 rear

    I carry a pillion.

  6. #26
    Moderator B7ACKTHORN's Avatar
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    Default Re: Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Quote Originally Posted by ani_iceman View Post
    Hi guys,

    Please let me know the proper tire pressure for following tire specification.

    2.75 -17 front
    100/90 -17 rear

    I carry a pillion.
    Posting just the tyre size won't suffice in giving you proper inflation buddy. Even modern day bicycles have far greater psi that what a motorcycle tire has. So tell us the model, make perhaps we can come to an approx conclusion.

    But for starters, you can find your psi in your owners manual or on the fuel tank or on the swingarm, or the tyre itself. On the motorcycle, you'll see manufacturer recommended tire pressure, on the tire itself you will see the maximum and minimum. If you can let us know that at least, perhaps we can help.

    Cheers!
    VJ
    Once upon a time, a guy asked a girl 'Will you marry me?'
    The girl said, 'NO!'


    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


    THE END

  7. #27
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    Default Re: Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Quote Originally Posted by B7ACKTHORN View Post
    Posting just the tyre size won't suffice in giving you proper inflation buddy. Even modern day bicycles have far greater psi that what a motorcycle tire has. So tell us the model, make perhaps we can come to an approx conclusion.

    But for starters, you can find your psi in your owners manual or on the fuel tank or on the swingarm, or the tyre itself. On the motorcycle, you'll see manufacturer recommended tire pressure, on the tire itself you will see the maximum and minimum. If you can let us know that at least, perhaps we can help.

    Cheers!
    VJ

    Its a Yamaha SZR.

  8. #28
    Moderator B7ACKTHORN's Avatar
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    Default Re: Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Quote Originally Posted by ani_iceman View Post
    Its a Yamaha SZR.
    Litttle Googling gave me the result 29 front, 33 rear

    For more like minded fellas, check out this thread.

    http://www.xbhp.com/talkies/motorcyc...-x-sz-r-6.html

    Cheers!
    VJ
    Once upon a time, a guy asked a girl 'Will you marry me?'
    The girl said, 'NO!'


    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


    THE END

  9. #29
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    Default Re: Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Quote Originally Posted by B7ACKTHORN View Post
    Litttle Googling gave me the result 29 front, 33 rear

    For more like minded fellas, check out this thread.

    http://www.xbhp.com/talkies/motorcyc...-x-sz-r-6.html

    Cheers!
    VJ

    Thanks man. Front is okay(29-30). But about the rear tire I am bit concerned because I ride with/without a pillion and (33-35) seemed a bit sluggish when I give a rip at the accelerator. I spoke to a local mechanic and he suggested me to keep 40 @ rear. Seems better now. I do use the specified tire dimensions only though I have changed from the stock TVS to Ceat. I have posted this too on that thread but no one seems to be active on it. Will try again. I am a noob at all these things so kind of worried.

  10. #30
    Moderator B7ACKTHORN's Avatar
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    Default Re: Proper tire pressures for 2.75-17 front and 100/90-17 rear tires

    Quote Originally Posted by ani_iceman View Post
    Thanks man. Front is okay(29-30). But about the rear tire I am bit concerned because I ride with/without a pillion and (33-35) seemed a bit sluggish when I give a rip at the accelerator. I spoke to a local mechanic and he suggested me to keep 40 @ rear. Seems better now. I do use the specified tire dimensions only though I have changed from the stock TVS to Ceat. I have posted this too on that thread but no one seems to be active on it. Will try again. I am a noob at all these things so kind of worried.
    Absolutely no problem. As a general rule, if you inflate too much, it will be harder for the bike to grip and though you'll have increased tire life you'll feel hard ride and poor grip when too much inflated. A slight underinflation aids in good grip, sidewall flex and absorbs shocks so you feel smoother ride. Not to underinflate too much, but, again, as I said by two to three PSI would do good.

    Cheers!
    VJ
    Lone_Rider 0_o likes this.
    Once upon a time, a guy asked a girl 'Will you marry me?'
    The girl said, 'NO!'


    And the guy lived happily ever after and rode motorcycles and watched sport on a big screen TV, went fishing and surfing, and played golf a lot, and drank beer and scotch and had tons of money in the bank and left the toilet seat up and farted whenever he wanted.


    THE END

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