Results 1 to 7 of 7

Thread: Tire Mounting

  1. 06-25-2015, 12:25 PM #1
    37yrold911
    37yrold911 is offline
    Banned
    Join Date
    Mar 2006
    Posts
    1,405

    Tire Mounting

    I am replacing my beloved but aged Bridgestoned SO-3 tires with Dunlop Direzza DZ102 in the same 205/255 for my 6" and 7" 15" Fuchs.

    The Dunlops have both red dots and yellow dots on them, and the installer said he did not know what they meant or which meant a light or heavy spot.

    He also said it didn't matter since his "Road Force" balancing machine (Hunter GSP-9700) would take care of it. I emphasized that I wanted the least amount of weight used to balance.

    I am wondering if anyone had any thoughts on this? It seemed strange that he didn't know what the different colored dots meant (he said each manf. had their own code). Do they need to mount one of the dots at the valve stem or opposite to the valve stem then balance? Or is just relying on the Hunter machine ok?

    BTW - I hardly ever drive over 130...
    Reply With Quote Reply With Quote
  2. 06-25-2015, 09:05 PM #2
    Richy
    Richy is offline
    Senior Member
    Join Date
    Oct 2010
    Location
    Southern Ca.
    Posts
    1,170
    The red dot is the outer most point of not being round and should be matched with a white dot that some wheels have or spin the wheel and find the low spot . The yellow dot marks the light point and should align with the valve stem on cars with pressure monitors .
    Reply With Quote Reply With Quote
  3. 06-26-2015, 04:46 AM #3
    72targa
    72targa is offline
    Senior Member 72targa's Avatar
    Join Date
    Feb 2004
    Posts
    13,216
    From this article...

    http://www.tirebusiness.com/article/...rkings-serve-a

    If you see both a red as well as a yellow dot on the tire, the red dot takes priority. An easy way to remember this is the phrase ``Red Rules.'' Ignore the yellow dot and match the red dot to the wheel low point dimple as some vehicle manufacturers do or, if no dimple is marked on the wheel, align the red dot with the valve stem.
    Peter Kane

    '72 911S Targa
    Message Board Co-Moderator - Early 911S Registry #100
    Reply With Quote Reply With Quote
  4. 06-26-2015, 06:12 AM #4
    Paul Shugert
    Paul Shugert is offline
    Member Paul Shugert's Avatar
    Join Date
    Feb 2015
    Location
    Prescott Az
    Posts
    51
    Great info. Thanks for posting and the informative replys.

    Learning something new every day on this forum.
    That's all folks...
    Reply With Quote Reply With Quote
  5. 06-26-2015, 07:51 AM #5
    Harvey Weidman
    Harvey Weidman is offline
    Senior Member Harvey Weidman's Avatar
    Join Date
    May 2005
    Location
    Oroville, CA
    Posts
    1,850
    All of the dots are mute point in with modern alloy wheels as they are very round and well balanced on their own and don't need any compensation.
    They were designed for steel wheels that had much larger tolerances.
    I first suspected this when my customers that had contracts for (auto) tire truing did so little business that they sold the majority of their truing equipment.
    I have discussed this in length with more than a few tire engineers and manufactures and they all said the same.
    BTW, since they don't use the lugs as attachment points, road force balancers are a waste of money, they are a sales tool...
    H
    Last edited by Harvey Weidman; 06-26-2015 at 08:07 AM.
    Reply With Quote Reply With Quote
  6. 06-26-2015, 08:59 AM #6
    37yrold911
    37yrold911 is offline
    Banned
    Join Date
    Mar 2006
    Posts
    1,405
    Thanks. re the lugs - you mean the roadforce machine gives no benefit on hub-centric wheels (??)
    Reply With Quote Reply With Quote
  7. 06-26-2015, 10:54 AM #7
    Harvey Weidman
    Harvey Weidman is offline
    Senior Member Harvey Weidman's Avatar
    Join Date
    May 2005
    Location
    Oroville, CA
    Posts
    1,850
    It is actually counterproductive on lug centric and serves no purpose on hub centric wheels.
    Just my observations. A over priced machine that is trying to take the logic process out of the job an it fails..
    To be polite
    H
    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules


Message Board Disclaimer and Terms of Use
This is a public forum. Messages posted here can be viewed by the public. The Early 911S Registry is not responsible for messages posted in its online forums, and any message will express the views of the author and not the Early 911S Registry. Use of online forums shall constitute the agreement of the user not to post anything of religious or political content, false and defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, or otherwise to violate the law and the further agreement of the user to be solely responsible for and hold the Early 911S Registry harmless in the event of any claim based on their message. Any viewer who finds a message objectionable should contact us immediately by email. The Early 911S Registry has the ability to remove objectionable messages and we will make every effort to do so, within a reasonable time frame, if we determine that removal is necessary.