Author Topic: Tire Ratings? 56H etc.  (Read 1023 times)

Cdnlouie

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Tire Ratings? 56H etc.
« on: May 11, 2005, 08:19:03 PM »
Got a quick question for the tire gurus on the significance of the "56H" etc. that appear after the 100/90-18 on tire designations?

MotorPlow

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Re: Tire Ratings? 56H etc.
« Reply #1 on: May 11, 2005, 08:25:07 PM »
I know the "H" is the Speed Rating. H-Rated for speeds up to 130 MPH.

ProfessorRex

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Re: Tire Ratings? 56H etc.
« Reply #2 on: May 11, 2005, 08:37:52 PM »
56 is the load rating, I can go into depth if you want and the higher the number the higher the load carrying ability.

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Cdnlouie

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Re: Tire Ratings? 56H etc.
« Reply #3 on: May 12, 2005, 07:46:16 AM »
That's what I was looking for, the load rating.  Thanks for both responses.  If you have the time give me the low down on the load rating.  I suppose it does have some relationship to the number of plies the tire is constructed from (and many differ on the side wall in particular).  So I am interested in hearing the long version when you have a chance.

Louie   ;)