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  1. Join Date
    Aug 2004
    Posts
    22,705
    #21
    The problem with run-flat ride is, the sidewalls have to be able to support the weight of the car even if the air gets low... that means they have to be ultra stiff. I guess technology in the future can make them more pliable and still safe to run, but sidewall flex causes heat, which is bad for tire life... so run-flat sidewalls have to be really really stiff.

    The tire sidewalls are part of the suspension... they're supposed to absorb the impact of bumps. If they don't absorb it and stay stiff, they're just passing the impact up to the car, and the suspension can only do so much by itself.

    Some runflats have a stiff rib attached to the rim inside the tire that holds it up when it deflates... but this is mostly used for armored vehicles, usually SUVs... because this system is, obviously, quite expensive compared to regular run-flats.

    Ang pagbalik ng comeback...

  2. Join Date
    Feb 2010
    Posts
    152
    #22
    Quote Originally Posted by oj88 View Post
    Yep. Standard equipment.... along with the engine. ;)
    Hanep ka oj ahhh.....archie is planning to buy one unit BMW that's why hes' asking...

  3. Join Date
    Jun 2006
    Posts
    3,305
    #23
    Ang mahirap sa BMW walang lagayan ng spare tire kung nagpalit ka ng regular tire from runflat tires.

  4. Join Date
    Feb 2005
    Posts
    2,642
    #24
    Quote Originally Posted by jonski View Post
    Ang mahirap sa BMW walang lagayan ng spare tire kung nagpalit ka ng regular tire from runflat tires.
    To add, runflat tires are very expensive and requires a special mounting/dismounting equipment. Then again, you don't feel this when new but should be a consideration later on.

  5. Join Date
    Nov 2010
    Posts
    24,726
    #25
    Quote Originally Posted by jonski View Post
    Ang mahirap sa BMW walang lagayan ng spare tire kung nagpalit ka ng regular tire from runflat tires.
    It will take up space in the trunk. Papano kung walang trunk? hehe.So pang-magandang road pa lang muna pala puwede RFT's.
    Fasten your seatbelt! Or else... Driven To Thrill!

  6. Join Date
    Jun 2006
    Posts
    3,305
    #26










    Sana meron ng tweels dito

  7. Join Date
    Apr 2011
    Posts
    523
    #27
    Quote Originally Posted by oj88 View Post
    Yep. Standard equipment.... along with the engine. ;)
    Panalo to! aylab it!

  8. Join Date
    Mar 2008
    Posts
    52,516
    #28
    story:
    my friend. new car owner driver.
    first flat tire. buti na lang may tricycle boy na dumaan.
    "boy, pa-palit naman ng flat ko".
    "yes mam".
    ...pawis pawis.. tapos na!
    "mam, heto na yung flat ninyo. san natin lagay?"
    "hay! sayo na yan. sira na yan, e."
    next day, nasa evangelista kami, bumubili ng brand new tire and surplus rim..
    lucky padyak boy..

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may spare tire na ba ang new car?