Carlisle or Maxxis
Going to replace my tires soon but I am trying to decide between Carlisle Radial Trail HD or the Maxxis 8008. 205/75R15, both D1 load rating. The trailer is maybe 6800-7000 lbs. loaded so I figure I d...
Forum Discussion
This from Maxxis about speed ratings found on another RV website;
Now if a Maxxis ST tire is stamped as a 99 mph speed rating on the tires sidewall then it is what it is.
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Old 07-12-2013, 06:49 AM #11
wmtire
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Location: Northeast Louisiana
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Here is a copy of the email I received yesterday from Maxxis, per my dealer request. (including original spelling)
Bobby,
The spped rating on for the Maxxis M8008 ST Radial is "Q", which is 99 MPH. However, according to the Tire and Rim Association the inflation pressures and load specifications in general for all ST Radial trailer tires, regardless of the manufacturer, are designed and rated at 65 MPH. If the speed is higher than 65 MPH, the pressure and load need to be adjusted according to the following guidelines:
From 66 to 75 MPH – the tire inflation pressure needs to increase 10 PSI (not to exceed the maximum PSI the tire is rated for) but requires no load adjustment.
From 76 to 85 MPH – the tire inflation pressure needs to increase 10 PSI (not to exceed the maximum PSI the tire is rated for) and load should be reduced by 10%.
We hope this information is helpful. Thanks for your email and interest in Maxxis Tires.
Best Regards,
The Maxxis Support Team.....
Now if a Maxxis ST tire is stamped as a 99 mph speed rating on the tires sidewall then it is what it is.
