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Tire mounting dots #4660412
02/08/18 10:04 PM
02/08/18 10:04 PM
Joined: Nov 2013
Posts: 226
Eastern Wa
Corollaman Offline OP
Corollaman  Offline OP
Joined: Nov 2013
Posts: 226
Eastern Wa
When mounting a tire are the mounting dots (red) supposed to be visible (outside of tire) or on the inside? Thanks.

Re: Tire mounting dots [Re: Corollaman] #4660421
02/08/18 10:09 PM
02/08/18 10:09 PM
Joined: Nov 2008
Posts: 9,046
Phoenix
dishdude Offline
dishdude  Offline
Joined: Nov 2008
Posts: 9,046
Phoenix
I don't think it matters unless the tire is directional, but isn't it supposed to be opposite the valve stem?


2018 Challenger SRT
Re: Tire mounting dots [Re: dishdude] #4660430
02/08/18 10:15 PM
02/08/18 10:15 PM
Joined: Jun 2005
Posts: 11,334
Santa Barbara, CA
bdcardinal Offline
bdcardinal  Offline
Joined: Jun 2005
Posts: 11,334
Santa Barbara, CA
Originally Posted By: dishdude
I don't think it matters unless the tire is directional, but isn't it supposed to be opposite the valve stem?


Every manufacturer is different and it can be different for the same tire supplied to OEMs vs the aftermarket.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Tire mounting dots [Re: Corollaman] #4660433
02/08/18 10:19 PM
02/08/18 10:19 PM
Joined: Nov 2013
Posts: 226
Eastern Wa
Corollaman Offline OP
Corollaman  Offline OP
Joined: Nov 2013
Posts: 226
Eastern Wa
I've just noticed the dots, wanted to make sure they weren't supposed to be on the inside of the tire when mounted.

Re: Tire mounting dots [Re: Corollaman] #4660435
02/08/18 10:22 PM
02/08/18 10:22 PM
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
CapriRacer Offline
CapriRacer  Offline
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
Just before Thanksgiving, I emailed some of the major wheel manufacturers and asked if the valve hole location meant anything and whether matching the red dots on tire up with the valve hole accomplished anything. I only got one response - and the answer was that the valve hole doesn't mean anything (for their wheels) and even the wheels they supply OE are not marked in that way.

That makes 2 wheel manufacturers that I am sure do not use the valve hole to mean anything of significance.

So coupled with the fact that not only aren't the dots on tires standardized - and some tire manufacturers don't have visible marks - and that all the OEM's (vehicle manufacturers) have different ways of having their tires and wheels marked, I think I can say with confidence that matching anything on the tire with anything on the wheel is largely a futile enterprise. It is not likely to do anything of significance.


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Tire mounting dots [Re: Corollaman] #4660571
02/09/18 06:06 AM
02/09/18 06:06 AM
Joined: May 2005
Posts: 10,281
ROCHESTER, NY
Char Baby Offline
Char Baby  Offline
Joined: May 2005
Posts: 10,281
ROCHESTER, NY
Ya know, I am really wondering if these dots even matter. As I have looked at brand new vehicles on the dealers lots and I just don't see anything that would show the dots lined up with anything in particular on the wheel. In fact, the dots are all over the place on a single vehicle. Sometimes the dots are lined up with e.g., the valve stem and other times the dot is 180 deg from the valve stem. But most of the time, the dots are everywhere else.


"Retired"
-----------------------------------

'80 Firebird FORMULA V8/4bbl-purchased "NEW"
'15 Nissan Altima 2.5 SV
'15 Honda Civic LX
Re: Tire mounting dots [Re: Corollaman] #4660580
02/09/18 06:28 AM
02/09/18 06:28 AM
Joined: Jun 2004
Posts: 305
Valencia, CA
Richie Offline
Richie  Offline
Joined: Jun 2004
Posts: 305
Valencia, CA
I always thought they had to be lined up with the valve stem.

Re: Tire mounting dots [Re: Corollaman] #4660588
02/09/18 07:00 AM
02/09/18 07:00 AM
Joined: Oct 2017
Posts: 636
Georgia
MParr Offline
MParr  Offline
Joined: Oct 2017
Posts: 636
Georgia
One thing I have noticed on some new cars is a dot on the wheel and the dot on the tire is mounted adjacent to the wheel dot. I guess the auto manufacturers and their OE tire suppliers have agreed on some sort of mounting guidance. This is most likely done to get the best ride for the auto buyer and easier balancing for the auto manufacturers.
Aftermarket tires and their mounting is a different story, the wheel dot is worn off when replacement tires are needed. The tire makers have guidelines for mounting aftermarket tire.
http://www.tirebusiness.com/article/2007...serve-a-purpose


2013 KIA Optima EX 2.4L. Now: QSUD 5W30 & STP S2808ML
2017 Ford Escape SE 2.0T Now: Pennzoil Platinum 5W30 & Motorcraft 910s
Re: Tire mounting dots [Re: Corollaman] #4660598
02/09/18 07:25 AM
02/09/18 07:25 AM
Joined: Jan 2003
Posts: 3,081
Coastal South Carolina
edwardh1 Online happy
edwardh1  Online Happy
Joined: Jan 2003
Posts: 3,081
Coastal South Carolina
I thought it was a tire mark that was placed next to the wheel valve stem hole.
---heaviest part of tire (dot) next to lightest part of the rim (hole area


These products are all new every year?? They are a revolution!!! Razor blades, mens shirts, TVs, wiper blades, gutter guards, hearing aids... according to the ads. But also all new last year
Re: Tire mounting dots [Re: edwardh1] #4660601
02/09/18 07:39 AM
02/09/18 07:39 AM
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
CapriRacer Offline
CapriRacer  Offline
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
Originally Posted By: edwardh1
I thought it was a tire mark that was placed next to the wheel valve stem hole.
---heaviest part of tire (dot) next to lightest part of the rim (hole area


First, the matching was all about roundness - not balance. The idea was to mark the runout high point of the tire with the runout low point of the wheel to get a more round assembly. It was never, EVER, about reducing the amount of balance weights.

Here what Tire Rack currently says about it: "....... There was a time when the valve stem hole on standard wheels indicated the optimum place to which the tire should be match mounted. However, with the advent of styled, steel wheels and aluminum alloy wheels, the stem position evolved into an aesthetic issue rather than being a uniformity indicator. ......"

Tire Rack: Match Mounting to Enhance Tire & Wheel Uniformity

This lines up completely with all the research I have been doing on the subject. To my knowledge, no wheel manufacturer marks the wheel for runout and/or balance. If you want to contradict that, please, let everyone know WHO is manufacturing wheels where the valve hole is the mark and what it means.


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Tire mounting dots [Re: CapriRacer] #4660609
02/09/18 07:53 AM
02/09/18 07:53 AM
Joined: Oct 2017
Posts: 636
Georgia
MParr Offline
MParr  Offline
Joined: Oct 2017
Posts: 636
Georgia
Go down to your local Hyundai or KIA dealership. Take a look at the wheel assemblies. You will see a dot on the wheel (decal) and a dot on the tire will match up with it.


2013 KIA Optima EX 2.4L. Now: QSUD 5W30 & STP S2808ML
2017 Ford Escape SE 2.0T Now: Pennzoil Platinum 5W30 & Motorcraft 910s
Re: Tire mounting dots [Re: MParr] #4660631
02/09/18 08:33 AM
02/09/18 08:33 AM
Joined: Aug 2010
Posts: 5,684
Champlain/Hudson Valley
Kira Online content
Kira  Online Content
Joined: Aug 2010
Posts: 5,684
Champlain/Hudson Valley
A) When friends cited this matching of mark-to-valve stem hole as "hillbilly tire balance" I figured it was a rural legend....pure bovine fertilizer.

B) If there's any coordination among tire/wheel/vehicle manufacturers on this it is in acknowledgement of the fact that car dealers seldom have the capacity to balance a wheel. Hats off to Hyundai/Kia for doing something so simple.

Re: Tire mounting dots [Re: Corollaman] #4660683
02/09/18 09:38 AM
02/09/18 09:38 AM
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
CapriRacer Offline
CapriRacer  Offline
Joined: Feb 2003
Posts: 3,421
Somewhere in the US
Just to clear some things up:

EVERY car manufacturer match mounts tires to wheels - BUT - NO ONE is using the valve hole for the mark on the wheel. Typically the mark is a removable sticker.

And match mounting is NOT about balance. It is about runout.


CapriRacer

Visit my web site: www.BarrysTireTech.com
Re: Tire mounting dots [Re: Corollaman] #4660719
02/09/18 10:10 AM
02/09/18 10:10 AM
Joined: Jun 2003
Posts: 33,104
ME
eljefino Offline
eljefino  Offline
Joined: Jun 2003
Posts: 33,104
ME
Look at those hubcaps that bolt over or through the lug holes. The valve stem can only be in one of four or five theoretical locations. There's no way that can be the low spot, consistently.

Re: Tire mounting dots [Re: Corollaman] #4660737
02/09/18 10:28 AM
02/09/18 10:28 AM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
Yellow dot lines up with valve stem. Yes it matters. The yellow dot goes to the valve stem, not to the interior across. It'll work, but not the best. They wash off if you scrub a bit smile

Red dot lines up with red dot on rim if they were spun at the factory and marked. Alcoa made alloys for the big three MFG's have red splotches on the rim at maximum run-out. The red dot on tire is minimum run-out. They go together smile

I just mounted a set of Kenda Klevers on my 1993 Ford F150 4x4 with factory Alcoa alloys which still had the red splotches on the rim in the valley. Tires run very smooth. The Kenda's all come with dots. On steel wheels I use the yellow dot at the valve stem location.

I have had two Kenda's (Kinetica's) mount to the front Weld wheels for the drag car that required ZERO wheel weights for both tires. First time that ever happened for me laugh

Last edited by BrocLuno; 02/09/18 10:41 AM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
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