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Markings on new auto tires ?


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#1 jpackard56 OFFLINE  

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Posted April 26, 2016 - 10:16 AM

O.K. in the past I have mounted motorcycle tires that had specific small paint/ink markings on the tires to help with the initial mounting process, IE where the stem went, the heavy spot, etc. Helped with balance.

 

Now I have this set of Perelli Cinturato P7 (H) tires to mount on aluminum rims that have the TPMS sensors. The tires have what looks like a blue stem and another red stem marked on the outside edge.

Any thoughts on the proper placement for initial mounting ?

 

 


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#2 Tecumseh power OFFLINE  

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Posted April 26, 2016 - 11:05 AM

On a perelli the stem gets centered between the two dots
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#3 MiCarl ONLINE  

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Posted April 26, 2016 - 11:48 AM

I'm not sure you need be concerned about it.

 

On motorcycles with tube type tires the presumption is the wheel/tube combo is heavy at the valve because of the reinforced are in the tube.  On tubeless tires there is no reinforcement in the tube to make a heavy spot.

 

When we're doing tubeless motorcycle tires where the tires are weight marked (not all brands are) we find the heavy spot on the wheel before mounting the tire.  At least half the time the heavy spot isn't near the valve by any stretch of the imagination.

I suspect your cast car rims are even less predictable than a motorcycle wheel.


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#4 JDBrian OFFLINE  

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Posted April 27, 2016 - 05:23 AM

It's not straight forward how to apply those marking dots in some situations. Here is some info from TireRack  http://www.tirerack.....jsp?techid=17


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#5 crittersf1 OFFLINE  

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Posted April 27, 2016 - 07:34 AM

I normally put the valve stem between the 2 dots


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#6 jpackard56 OFFLINE  

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Posted April 27, 2016 - 08:03 AM

It's not straight forward how to apply those marking dots in some situations. Here is some info from TireRack  http://www.tirerack.....jsp?techid=17

Thanks for the link. I tried to find this info. on Tire-Rack and missed it somehow.

 

You'll like this though, when I called them (Tire-Rack) directly their "expert" told me that the markings were "inventory" marks :( I was already in not such a good mood so I had to hang up before I degraded his ancestry... When will companies start employing people that have a clue about their products ?

 

I figured being these marks kinda look like valve stems that the one color was for sensor wheel stems and the other was for regular stems... Probably won't get back to them till this weekend.






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