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Old 07-14-2013, 11:30 AM   #11
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I've ordered a set of Goodyear HMG2020 tires in this size for my Roo 21RS.

It was down to the Kumho 857 and these GYS for me. I didn't want to go with load range C tires, eventhough the GY Marathons get good reviews, and no tire shops up here in Canada seem to be able to get their hands on Maxxis tires. The Kumhos were from tire rack, and we're hundreds less, but then I'd have to find someone to install them (numerous tireshops said no), and I wouldn't have access to a network of tire shops across the country if I needed a warranty replacement while traveling. So I'll bite the bullet & spend more, hoping to get the safest & best-warrantied tire available for our trailer. And as an added bonus, someone has said these are made in Canada, so I'm happy to be able to support a North American factory!

I'll report back once I have them installed, but they look like the sturdiest tire to be found in this size, from what I can tell. (UHaul uses these tires on their trailers, so they need to stand up to all kinds of abuse!)
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Old 07-14-2013, 11:38 AM   #12
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Originally Posted by RockyMtnHigh View Post
I've ordered a set of Goodyear HMG2020 tires in this size for my Roo 21RS.

It was down to the Kumho 857 and these GYS for me. I didn't want to go with load range C tires, eventhough the GY Marathons get good reviews, and no tire shops up here in Canada seem to be able to get their hands on Maxxis tires. The Kumhos were from tire rack, and we're hundreds less, but then I'd have to find someone to install them (numerous tireshops said no), and I wouldn't have access to a network of tire shops across the country if I needed a warranty replacement while traveling.

I'll report back once I have them installed, but they look like the sturdiest tire to be found in this size, from what I can tell. (UHaul uses these tires on their trailers, so they need to stand up to all kinds of abuse!)
Needless to say, get them balanced by some means.
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Old 07-14-2013, 11:53 AM   #13
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I plan on it, thanks OC!
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Old 07-14-2013, 12:14 PM   #14
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I have new unable to find where it says Maxxis are high speed rated. Being an ST tire I was under the impression the they were speed rated at 65.
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Old 07-14-2013, 01:26 PM   #15
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I have new unable to find where it says Maxxis are high speed rated. Being an ST tire I was under the impression the they were speed rated at 65.
There was a recent post by wmtire where he emailed Maxxis and was told that by them. I can't easily search from my phone or I would- but, look him up and look for a recent post (last 3-4 days) by him.
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Old 07-14-2013, 01:31 PM   #16
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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
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Old 07-14-2013, 01:46 PM   #17
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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
So if you start out with the tire inflated to its max you're good to 99 mph!!!
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Old 07-14-2013, 02:39 PM   #18
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So if you start out with the tire inflated to its max you're good to 99 mph!!!
Maybe if you were 20 or 30% under the max load.
But I don't think I would push it.
It is just good to know that if you have Maxxis tires on your camper, you aren't forced to drive under 65 mph. Or if you drive at 65 mph all the time, you aren't on the edge of their rating.
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Old 07-14-2013, 04:04 PM   #19
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I plan on it, thanks OC!
The Goodyear HMG 2020, size ST205/75D14D are bias ply tires with a maximum load capacity of 2040. The tire has a J speed rating (62 MPH).

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Old 07-14-2013, 09:14 PM   #20
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I wonder if all the blow out are a tire rated at 65 and loading to the max. Then running 65 miles per hour for hours on end. After seeing the trailer last weekend . And pulling a deformed tire off my trailer. For safety we needed some better tires. Thanks for all the input and help. I believe the Kumho 857 is the only one I have seen with a speed rating over 65.
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