Max speed towing.

[BillB800si]

Sept. 2016 issue of Trailer Life Magazine has a big article on Maxxis ST Tires (page 39). For ALL of their various size tires they post a maximum speed of 65 mile per hour. I get passed all the time by RV'ers going at least 70 MPH.....
Slow down and enjoy the trip....

[Cummins12V98]

West Coast I tow 60 even in 55 zones with no issues. Traveling in the 70 and 75 areas in wide open country we choose to do those speeds to get to our destination sooner and to he!! with the fuel expense. GY "H" tires rated at 75.

[Turtle_n_Peeps]

ktmrfs wrote:

Turtle n Peeps wrote:

hotpepperkid wrote:

TexasChaps wrote:

downtheroad wrote:
Knowing that I am going to hear about it....I have to say.
Most often when I get blown off the road by someone towing, it's a toy hauler.

That was probably my wife...! she is religious about conforming to posted speed limits.. so if it's 30.. then she drives 30.. if it's 65 then she drives 65, if it's 75 then she drives 75 !!!!
thank the lord there are no 85 or higher posted limits..:E

I did tell her the tires are rated at 65.. even though they are LT's
but to no avail... sigh..

Oh but there are some stretches of I-15 in Utah and some in Wyoming with 85 mph speed limit or at least they were a few years ago

They were 80 MPH, not 85. The only place you can legally go 85 MPH is a few roads in Texas.

there is (or was) a section in Idaho and in Utah south of salt lake on the interstates with 85mph speed limits. At least in 2012 when we went through utah and my brother lives in idaho and mentioned there are sections of idaho with an 85mph speed limit. Montana is now also 80mph on most interstates.

Link, look at the date

Another link

Texas the first to open 85MPH in 2012

Texas is the only one with an 85 MPH speed limit. It was a big deal back in the day when they went from 80 to 85.

[tinner12002]

ktmrfs wrote:
Direct from Maxxis their tires can be run up to 85mph with proper derating.

According to the Tire and Rim Association, the U.S. tire industry specification authority, inflation pressures and load specifications in general for any ST Radial trailer tires, without a service description, 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 per cent.
We hope this information is helpful. Thanks for your inquiry and interest in Maxxis Tires.
Best Regards,
Your Maxxis Support Team

BTW goodyear, Carlise (sp?) and others have similar derating as well if you ask.

I don't think that Maxxis is telling you its ok to run at a higher MPH, tires are tested to higher speeds but they are regulated by the tire and rim association to have a rated top speed rating of 65. You do as you want and drive as fast as you want but you'll be passing me as I plan to stay at 65MPH max.

[ktmrfs]

Turtle n Peeps wrote:

hotpepperkid wrote:

TexasChaps wrote:

downtheroad wrote:
Knowing that I am going to hear about it....I have to say.
Most often when I get blown off the road by someone towing, it's a toy hauler.

That was probably my wife...! she is religious about conforming to posted speed limits.. so if it's 30.. then she drives 30.. if it's 65 then she drives 65, if it's 75 then she drives 75 !!!!
thank the lord there are no 85 or higher posted limits..:E

I did tell her the tires are rated at 65.. even though they are LT's
but to no avail... sigh..

Oh but there are some stretches of I-15 in Utah and some in Wyoming with 85 mph speed limit or at least they were a few years ago

They were 80 MPH, not 85. The only place you can legally go 85 MPH is a few roads in Texas.

there is (or was) a section in Idaho and in Utah south of salt lake on the interstates with 85mph speed limits. At least in 2012 when we went through utah and my brother lives in idaho and mentioned there are sections of idaho with an 85mph speed limit. Montana is now also 80mph on most interstates.

[ktmrfs]

Direct from Maxxis their tires can be run up to 85mph with proper derating.

According to the Tire and Rim Association, the U.S. tire industry specification authority, inflation pressures and load specifications in general for any ST Radial trailer tires, without a service description, 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 per cent.
We hope this information is helpful. Thanks for your inquiry and interest in Maxxis Tires.
Best Regards,
Your Maxxis Support Team

BTW goodyear, Carlise (sp?) and others have similar derating as well if you ask.

[myredracer]

I've had this happen a number of times. I'm doing 65 (and speeding) in what was the right lane. A truck is passing me on the left. The truck on the right entered from an on-ramp and the highway widened one more lane at that point, leaving me in the 2nd lane from the right. Both trucks were doing 70-75 mph and were soon gone from sight. It is what it is.

[badercubed]

68mph to 72mph depending on traffic and wind.

[Frostbitte]

100 KM/h = 62 MpH here on secondary highways
110 KM/h = 68 MpH here on primary highways. I don't go over that unless I'm doing a quick maneuver.
Most trailers that pass me are much smaller and lighter and I care more about comfort, mileage and safety more than speeding.
If it's a long distance and I need to make up for with speed, I don't. We just plan it better to go halfway or most ways and stop over for the night.

[JohnES]

I agree with you, I always keep it around 65mph. Also, I believe you get the best mpg at 65.

[Bedlam]

55-65 mph is typical for us when towing. We did a trip across the entire expanse of US2 and back on I90 this summer and were mostly at 60 mph the whole route. I still work full time, so driving faster due to work is not an excuse I accept.

[hotpepperkid]

I do the speed limit up to 70 except in CA then I do what ever I think I can away with and its worked so far (30 yrs)

[73guna]

mike-s wrote:
142 MPH.

That was an awesome video.
Reminds me of our last camping trip when we were on the way home. :B

[DinTulsa]

I set the cruise at 65 and let the truck eat do the work. I see no reason to tow faster than 65 when that is what my tires are rated for.

[bluepost]

60ish. Not retired but still not in a rush. Not so worried about tire failure as I am about an avoidance maneuver.....debris on the road, accident ahead, etc. 70 vs 60 is 245 ft vs 180 ft....that's not counting reaction time...that's just straight stopping distance in a car. Could be more with a trailer, but surely not less. 348ft vs 268ft with reaction time factored in....80 ft difference is huge.

80 ft is the difference from being in the accident area ahead of you and not even being near the debris.