tires tires tires

[randys1972]

the first one had 3axle 15in d goodyears 59000 miles 45lbs belt broke 5000 replaced free. montana had some off brand 2 axle 2 years no problems, 3rd Jayco 2axle goodyear 735lt e rated 110lbs run 90, broke a belt at 15000 said I slid the tire. I now have a cyclone toyhauler 3 axle with power king st235-80 r16 10 ply 10000 miles doing good

 

[lramsey]

Tires Tires Tires Tires

Good analysis by all. I will add a little.



I have a 25' car/snowmobile hauler (10K GW), bought in 2003. I have pulled from UT to VA. I had blowouts with "D" rated tires. The last blowout (Oh, the trailer was probaby at 10K GW) was June 2007, I went to Goodyear site and found out the ST tires are rated at 65 MPH. Well, that was an eye opener. I searched internet for "E" ST tires and found Carlisle. I put 4 on and pressured up to 80 psi. My first experience with the new tires, with only 50 miles on tread, was looking down at speedometer and seeing 85. I slowed down and realized that with the 80 psi these tires pull the hauler easier. I have not had a blowout. I have put about 3K miles on the tires.

I think there are many variables to consider:

1. UV rays on tires.

2. Speed of towing.

3. Air pressure of tires. Its critical to Keep tires at 100% + maximum tire pressure. Goodyear web site "suggested" to increase tire pressue by 10% IF towing at 65+ MPH.

4. Highway surface of towing.

5. Balance of tires.

6. There are many more - but its late and I'll stop for now.

 

[LRutigliano]

Good analysis by all. I will add a little.



I have a 25' car/snowmobile hauler (10K GW), bought in 2003. I have pulled from UT to VA. I had blowouts with "D" rated tires. The last blowout (Oh, the trailer was probaby at 10K GW) was June 2007, I went to Goodyear site and found out the ST tires are rated at 65 MPH. Well, that was an eye opener. I searched internet for "E" ST tires and found Carlisle. I put 4 on and pressured up to 80 psi. My first experience with the new tires, with only 50 miles on tread, was looking down at speedometer and seeing 85. I slowed down and realized that with the 80 psi these tires pull the hauler easier. I have not had a blowout. I have put about 3K miles on the tires.

I think there are many variables to consider:

1. UV rays on tires.

2. Speed of towing.

3. Air pressure of tires. Its critical to Keep tires at 100% + maximum tire pressure. Goodyear web site "suggested" to increase tire pressue by 10% IF towing at 65+ MPH.

4. Highway surface of towing.

5. Balance of tires.

6. There are many more - but its late and I'll stop for now.

lramsey, thanks for the great points!!



I'll add a few more...



- Weigh your rig, specifically each axle and each tire (if possible).

- Then make an educated decision on which tires and load ratings are best for you.



Yes... Mission brand tires are super cheap tires just waiting for an opportunity to fail, but I don't think the RV manufacturers are actually weighing the load on each axle and tire and possibly not spec'g the correct load rated tire for the actual trailer.



Look at the all responses with "I went from a load range D 225/75-15ST tire to a an E rated 235/85-16 XPS Rib"... duh !! We get it... Michelin XPS Ribs are to trailer tires what the ISB is to pick-up truck diesels... Except that Michelin doesn't have a "4BT" version of this tire (15"), they only make the "6BT" (16") version that will only fit on trailers with enough clearance.



Floor plans sell, not well balanced trailer loading...



Additionally, I wonder how many tires are actually filled to the proper PSI at the RV factory and then shipped... It could be that all RVs have tires that will fail soon after delivery due to lack of dilligence during the inaugural 300 to 1500 mile pull to the dealer...



They are not balanced at the factory, do you really believe the air pressure is correct and checked??

 

[HBarlow]

Good analysis by all. I will add a little.

I have a 25' car/snowmobile hauler (10K GW), bought in 2003. I have pulled from UT to VA. I had blowouts with "D" rated tires. The last blowout (Oh, the trailer was probaby at 10K GW) was June 2007, I went to Goodyear site and found out the ST tires are rated at 65 MPH. Well, that was an eye opener. I searched internet for "E" ST tires and found Carlisle. I put 4 on and pressured up to 80 psi. My first experience with the new tires, with only 50 miles on tread, was looking down at speedometer and seeing 85. I slowed down and realized that with the 80 psi these tires pull the hauler easier. I have not had a blowout. I have put about 3K miles on the tires.
I think there are many variables to consider:
1. UV rays on tires.
2. Speed of towing.
3. Air pressure of tires. Its critical to Keep tires at 100% + maximum tire pressure. Goodyear web site "suggested" to increase tire pressue by 10% IF towing at 65+ MPH.
4. Highway surface of towing.
5. Balance of tires.
6. There are many more - but its late and I'll stop for now.

You provided no info regarding tire sizes so we can only guess.

If you have installed LRE tires and inflated them to 80psi on the original wheels intended for LRD tires inflated to 55 or 60 psi you are putting unintended stress on the wheels and asking for a wheel failure.

Wheels and tires are matched. You can't safely upgrade tires to a higher load rating and inflation pressure without changing the wheels also.