Tire Speed Rating Question
I'm posting this here because the speed rating of a tire seems to me to cross all lines/types of vehicles. Reading up on warranty issues/questions just now, I came across the following language ...
Forum Discussion
We have our reply from
This is the same as the contents of Goodyear's PSB #2011-13 which we have discussed beforehand. I believe we can say the PSB is in effect.
... at speeds between 66 and 75 mph:
Tire: Add 10 to 50psi means inflate to 60psi.
Wheel: Dexstar 17-229 is rated 1660lbs 65psi.
HTH;
John
Goodyear wrote:
From: goodyear_cr@goodyear.com on 07/25/2013 01:13 PM
Sent by: Goodyear Tire & Rubber Company Consumer Relations 728 1144 East
Market Street Akron, OH 44316 Voice #: 800.321.2136 Fax #:
330.796.6829
Mr.,
The max load is 1,360lbs at max 50psi.
Industry standards dictate that tires with the ST designation are speed
rated at 65 MPH (104 km/h) under normal inflation and load conditions.
• Based on these industry standards, if tires with the ST designation are
used at speeds between 66 and 75 mph (106 km/h and 121 km/h), it is
necessary to increase the cold inflation pressure by 10 psi (69 kPa) above
the recommended pressure for the rated maximum load.
Do not exceed the maximum pressure for the wheel.
Jennifer - Consumer Relations
From:on 07/24/2013 01:11 PM AST
From:
To: goodyear_cr@goodyear.com
cc:
Subject: Contact Us request from www.goodyear.com
A Goodyear website user has submitted a request through the corporate
contact form. Please address the concern accordingly.
Name:
Email:
Phone:
Address:
, 0
Message:
Looking for ST trailer tires. What is the status of your Document PSB
#2011-13 with Subject: Tires for Trailer Use Only: General Information ?
What is the max load and psi of your Marathon 175/80/R13 between 66 and
75mph?
If you are not the correct recipient, please notify the Goodyear Global Web
Operations team of the email error and we will update our website contact
list.
This is the same as the contents of Goodyear's PSB #2011-13 which we have discussed beforehand. I believe we can say the PSB is in effect.
... at speeds between 66 and 75 mph:
Tire: Add 10 to 50psi means inflate to 60psi.
Wheel: Dexstar 17-229 is rated 1660lbs 65psi.
HTH;
John
