Guests - If You want access to member only forums on FM. You will gain access only when you Sign-in or Sign-Up on Fishing Minnesota.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
Deep_Sinker

Trailer tire pressure

14 posts in this topic

Does anyone know for sure what smaller trailer tires should run for pressure. I picked up some Carlise 4.80 x 12 rim and tire for my boat trailer this weekend and there was a sticker saying to inflate to 60lbs. cold.(this is what the side wall says is the max pressure) Am I crazy thinking that this is way too high? Any good advice is appreciated. It seems I can only get a few thousand miles out of these tires before they are shot.

Share this post


Link to post
Share on other sites

I was wondering that about my snowmobile trailer. Should I run at max pressure all the time? Load or no load, cold/warm?

Share this post


Link to post
Share on other sites

Smaller tire diameters need higher pressure to dissipate the heat generated by speed and heavy loads. There have been past threads questioning the quality and durability of Carlisle tires.

Share this post


Link to post
Share on other sites

I always fill to recommended pressure. I have noticed that, as IFallsRon says, they get hot if underinflated.

Share this post


Link to post
Share on other sites

Inflate them to the max tire pressure as displayed on the side wall.

Share this post


Link to post
Share on other sites

Go to the max pressure, even if empty. 60lbs is normal.

Share this post


Link to post
Share on other sites

Oh, that's why my trailer tires always very hot even after a short trip. I thought my truck's tire needs only 33 lbs, why my trailer tires said 50 lbs, LOL.

Share this post


Link to post
Share on other sites

Do 60 pounds of pressure, unless you want to blow out your tires.

Share this post


Link to post
Share on other sites

A more complex answer just to throw a wrench in the machinery...

Every tire has a pressure vs load capacity. Now, for some it's very hard, if not darn near impossible to find this data, but that is where the most correct inflation pressure comes from.

Too much air and the the ride is overly rough and can be damaged by shocks/impacts, too low and the tire runs hot, harder to pull, etc.

Here is an example from Goodyear. You find the tire style, size, load rating and then you get the tire load vs. pressure details. So, if you know the weight of the trailer and load, you can then determine the "optimum" inflation pressure - again, provided you can locate the load table.

Share this post


Link to post
Share on other sites

Another point I see often ignored with trailer tires is the maximum speed rating. I see many trailers with 8 or 10 in. tires being towed down the interstate at 75-80 mph. These tires are probably rated for 55 mph max. Some of the 8" are only rated for 45 mph. Part of this is because of bearing speed. That small trailer tire is turning more than 4 to 1 compared to your trucks tire. Lots of extra rpm there. If that tire is soft (low air), all the extra sidewall deformation will really generate heat too.

Share this post


Link to post
Share on other sites

I think that I will stick to the 60lbs. Thanks for all the insight. Also, have any of you found a good durable tire like this if the Carlisle isn't very good???

Share this post


Link to post
Share on other sites

Carlisle is the low end, Good year are a good brand but not easy to find

Share this post


Link to post
Share on other sites

Are Carlisle tires really as bad as I am hearing and reading on different forums? I have a set on my Eagle trailer now that are 3 yrs old but look to be in good condition with about 4500 miles on them. Is it true that a lot of them are re-treads? Pretty close to switching them out for Goodyear Marathons.

Share this post


Link to post
Share on other sites

Carlisles.. are round and they roll. They dont last very long and there has been way too many issues with them. Some due to operator error(tire owner), and way too many other problems just because they are a poor quality tire, but they are economical and popular because of it. I think all trailers that have 12" and 8" wheels come with Carlisle tires standard... because they save the manufacturer money, and they are readily available.. not because they are a decent tire(they are not). Its similar to the Firestone situation with Ford in the past, and notice most light trucks had Good Year Wrangler RTS tires on them for a long time? Manufacturers put tires on that are cheap.

If you are stuck buying Carlisle because of availability, buy more tire than what you need(higher load range) and you shouldnt have so many problems, but they will not last as long as a quality tire. Keep your tire properly inflated to max pressure(usually somewhere between #40-#80 psi).

Over loaded tires are going to be a problem no matter what brand they are.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.
Sign in to follow this  
Followers 0



  • Posts

    • Rick G
      With the wind being fairly strong today I opted to hit the back waters of Little Rock. Have done goid there in yrs past.... so I figured it would be worth a shot. Finding crappies was pretty easy, they were holding tight to the brush and downed trees. Finding crappies over 8inches was tough...lol.  I don't think I broke 9inches. But did manage one big carp. Guessing right around 30in, pulled me and the yak all over the lake before I got it boat side
    • Rick G
      Hit the one down by Watkins a couple times this winter. There were a lot of people that fished it this last winter. Got gills and crappies of all different sizes. If your looking for keeper size fish, other area lakes will provide better numbers. Haven't been on the other one of  in a few yrs. There were good numbers of 6-7in sunfish if I remember right.
    • TProGuy
      Looking to get a different depth finder for my boat, one with GPS and side imaging. I have $650 to spend, and have found a new Helix 7 SI and a used 998c SI HD with about 800 hours on it.  They both are $600.  Which one would you get and why?   Thanks!
    • MJ1657
      I got a DL Smithing spear this weekend. 
    • AlwaysFishing23
      Looks fun Eyguy. As normal no time to get out but did just finish up cleaning and checking over the yak so maybe thats a sign. Haha.