Hi,Going to make a 2000+ miles round trip within 10 days time frame and wondering if there is any problem if I tow 75 mph provided road is flat, traffic is clear and normal wind condition. 65 mph sounded like a norm to most people and I like to hear from seasoned RVers.Tow vehicle is Titan XD with Cummins 5.0 Turbo.Thanks.Tim

Most ST trailer tires are speed-limited to 65 mph in their ratings. Depending on how close you are to the load rating on the tire you may be asking for a blowout. I typically tow between 65-70 as that's the sweet spot for my drivetrain. I feel like 75 is pushing it for my rig, but if you have the hitch set up right and the rig is well balanced you maybe OK.Also be aware that fuel consumption increases exponentially with speed because of the huge wind drag created by the trailer. No exaggeration, it may cost you a few hundred $$ over your trip more to cruise at 75 vs 65.Not saying don't do it, just be aware of the implications.

BurbMan wrote:Not saying don't do it, just be aware of the implications.Likely including a MUCH greater stopping distance.Leave a LOT of extra space.

Roll of the dice, 21, poker, slots, etc.. Same deal.. Will I win if I do any of those?? Dunno.. Maybe, maybe not.. Basically you are asking the same question.. ;)No one on earth can tell you "sure, you'll be fine".. Or "Heck no, you'll end up in a burning pile of rubbish and kill everyone within a 1 mile radius if you do that"... :)Most states have speed limits of no more than 70 mph.. Sure, there are those states that have no speed limits and all, but are you going thru those?Anyway, only you know your comfort level and in "general" most OEM tires that are put on trailers are the cheapest and just barely clear the trailers load limit..Personally, I'm comfortable with around 65 mph for hours at a time.. But, that's just me..You can do whatever you feel comfortable with of course. And if that's 75 mph, well, there you go..Mitch

You can go as fast as your little heart desires and be 100% responsible for the collaterial damage.Your post reminds me of last year going up north on US 127 in Michigan. This guy with a TT blew past me like a house on fire. Got down the road about 10 miles and there he was, on the berm with two blowouts.I tooted my horn and waved and continued to my destination without incident.Speed kills. Not just people, equipment too.

Tim TH wrote:Hi,Going to make a 2000+ miles round trip within 10 days time frame and wondering if there is any problem if I tow 75 mph provided road is flat, traffic is clear and normal wind condition. 65 mph sounded like a norm to most people and I like to hear from seasoned RVers.Tow vehicle is Titan XD with Cummins 5.0 Turbo.Thanks.TimCalifornia has a speed limit of 55mph for trailers and towed vehicles.Depending on the highway, they might allow up to 65mph even at the same posted speed limit of 55. But you don't want to know which is which as the state has the highest fines for traffic violation.The most important consideration though is safety: for yourself, your family and other people.

Maximum tow speed for 6500 lbs Toy Hauler with two axles

1320Fastback
Explorer
Jul 16, 2018
Out on the open highway I'll hit the low 70s but in towns even if not busy I slow to 65 or under. In California I drive 60-62 with the rigs, but tend to speed up to pass them then back down. California is 55mph for anything towing but 55-62 is usually safe.
blt2ski
Moderator
Jul 16, 2018
RCW 46.61.400 says max speed for any vehicle over 10K lbs, be it single or combo is limited to 60 mph on roads with in the state. The only over 10K rig is a passenger coach, will assume a bus.

Marty
mowermech
Explorer
Jul 15, 2018
For Montana, go to:
https://www.mdt.mt.gov/visionzero/roads/speedlimits.shtml

The "Reasonable and Prudent" speed limit lasted from 1995 to 1999.
"May 1999: A law passed earlier that year by the Montana Legislature took effect to set a 75 mph speed limit on interstate highways in Montana. It was the state's first posted daytime speed limit since December 1995."

I do not know of any state at the present time which does not have a speed limit.
KD4UPL
Explorer
Jul 15, 2018
RTCastillo wrote:
Now I'm curious. What states don't have speed limit -- or speed limit beyond 65 mph for trailers and semis?

I seem to recall Utah and Nevada were the states that set speed limits when there was none before.

VA and WV are both 70 MPH for all vehicles. I think NC is the same last I was there. Most of the states here in the east that I travel in have only 1 speed limit for all vehicles and it seems like it's frequently 70 MPH.
drmopar
Explorer
Jul 15, 2018
Years ago I owned a Speed Shop. I had a sign that read "Speed costs money, now how fast do you want to go?"
Tim_TH
Explorer
Jul 15, 2018
Thanks everyone for your seasoned advice.
Great Forum.
Grit_dog
Navigator
Jul 15, 2018
Max safe speed could also = max comfortable speed and there is not a one size fits all answer.
I have no problem towing most anything a pickup will pull at 70-75+ mph. Do I set the cruise on 80 mph with a trailer?.......sometimes. Again, truck, trailer, road conditions, experience, weather, all play a part.
If you're asking the question, err on the side of caution until you become more comfortable/knowledgable, IMO.
Turtle_n_Peeps
Explorer
Jul 15, 2018
RTCastillo wrote:
Now I'm curious. What states don't have speed limit -- or speed limit beyond 65 mph for trailers and semis?

I seem to recall Utah and Nevada were the states that set speed limits when there was none before.

A lot of western states and mid western states that I travel on are 70 to 75 mph. Utah has a few roads that are 80 MPH.

I know a lot of people from the east are going to freak out at the 80 MPH one if they have never been out west. They don't understand that those roads are straight at a string and flat as a pancake.

OP my advice to you is this. Drive as fast as you feel comfortable with and have the equipment to drive but always under the speed limit. That's what I do.
dodge_guy
Explorer II
Jul 15, 2018
Just got back from the east coast. IN. OH, PA and NJ have set the limit at 70. I Believe it was IN that has a limit at a certain weight for commercial. Nothing restricting trailers.
Frostbitte
Explorer
Jul 15, 2018
I’m in Canada. Most highways are 100km/h to 110 km/h which is about 62 to 70 mp/h roughly. I rarely exceed that unless I’m passing in a hurry, which isn’t often but you know, idiots. Anything faster just eats fuel and there’s less reaction time and more stopping distance required when **** happens, plus I have my family with me so it’s just not worth it to go any faster.