New tires - Montana Owners Club

Sdexte · 10-21-2020, 10:49 AM

I need to replace the tires on my 2019 373RD and would like some good suggestions. I have read many posts regarding Saliuns but I would like to hear if there are other brands as well. I plan on going with a g rated tire. Also if anyone knows a good tire shop in the Bristol TN/VA area. Thanks

Eagleback · 10-21-2020, 11:01 AM

Quote:

Originally Posted by Sdexte

I need to replace the tires on my 2019 373RD and would like some good suggestions. I have read many posts regarding Saliuns but I would like to hear if there are other brands as well. I plan on going with a g rated tire. Also if anyone knows a good tire shop in the Bristol TN/VA area. Thanks

There are no other brands that have the price vs. quality and a proven track record.

Sdexte · 10-21-2020, 11:20 AM

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Originally Posted by Eagleback

There are no other brands that have the price vs. quality and a proven track record.

Thank you, what would the correct model be? G rated 85

CalandLinda · 10-21-2020, 11:47 AM

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Originally Posted by Sdexte

Thank you, what would the correct model be? G rated 85

IMO your best upgrade would be the ST235/80R16 LRG. It will give you more than 350# of load capacity per tire above the current LRF tires and still be compliant with the vehicle certification label.

The standard LRG is an all steel constructed tire. I'd shop around. There are manufacturers that provide that tire nation wide without having to have it mailed to you. That's real advantageous if you were to have to replace one on the road.

DutchmenSport · 10-21-2020, 11:55 AM

Every time the subject of tires comes up, I usually get my hand slapped. But in our past, we had Carlisle's on our previous travel trailers and never had any problems, ever. And we now have Hercules tires on ours now. 14 ply ST235/80R16.... 2 years, thousands and thousands of miles now, no signs of wear, tread still about 1/2 inch deep. The reason we went with these, was because we had a blow-out 6 months after purchasing the trailer and we were 500 miles from home. The only place that had tires for a trailer was a semi-truck tire repair shop. So, what we ended up with, was tires for a commercial semi truck trailer.

Think-outside the box? You just never know what you'll come up with!

PSFORD99 · 10-22-2020, 10:23 AM

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Originally Posted by DutchmenSport

Every time the subject of tires comes up, I usually get my hand slapped. But in our past, we had Carlisle's on our previous travel trailers and never had any problems, ever. And we now have Hercules tires on ours now. 14 ply ST235/80R16.... 2 years, thousands and thousands of miles now, no signs of wear, tread still about 1/2 inch deep. The reason we went with these, was because we had a blow-out 6 months after purchasing the trailer and we were 500 miles from home. The only place that had tires for a trailer was a semi-truck tire repair shop. So, what we ended up with, was tires for a commercial semi truck trailer.

Think-outside the box? You just never know what you'll come up with!

It seems most of these All Steel radials 235/80/16 ,and 235/85/16 have stepped up their game. You are a giving the Hercules a good review ,Westlakes is another, seems like there are several.

Then there is Sailun ,which seems to get the best reviews ,can't be beat in price. As far as size the OP asked about the 235/85/16, not a problem, being just 1" taller ,and a better weight rating. Most of our fifth wheels come with the 235/80/16's ,but many go the 85's

CalandLinda · 10-22-2020, 11:01 AM

Quote:

Originally Posted by PSFORD99

It seems most of these All Steel radials 235/80/16 ,and 235/85/16 have stepped up their game. You are a giving the Hercules a good review ,Westlakes is another, seems like there are several.

Then there is Sailun ,which seems to get the best reviews ,can't be beat in price. As far as size the OP asked about the 235/85/16, not a problem, being just 1" taller ,and a better weight rating. Most of our fifth wheels come with the 235/80/16's ,but many go the 85's

The 85s invalidate the vehicle owner's manual, tire and load placard and the vehicle certification label. The 80s do not.

Lenny K · 10-22-2020, 11:25 AM

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Originally Posted by CalandLinda

The 85s invalidate the vehicle owner's manual, tire and load placard and the vehicle certification label. The 80s do not.

If the trailer is out of warranty how does that effect it?

PSFORD99 · 10-22-2020, 11:30 AM

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Originally Posted by Lenny K

If the trailer is out of warranty how does that effect it?

I too am very curious every time this is posted .

CalandLinda · 10-22-2020, 03:48 PM

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Originally Posted by Lenny K

If the trailer is out of warranty how does that effect it?

What's the warranty got to do with it?

What the invalidation does in this case has to do with tire Designated size and recommended cold inflation pressures.

When going from a ST235/80R16 to a ST235/85R16 its called plus sizing. There is a standard tire industry procedure that will include setting a new recommended cold inflation pressure for the plus sized tires. Also in the procedure there are recommendations to make pen & ink changes in the vehicle owner's manual and apply supplemental tire and inflation stickers adjacent to the factory installed placards. (It's called "protecting the field").

When operating without a recommended cold inflation pressure for your tires you're pi--ing in the wind ever time you air your tires.

In the automotive industry there are lists of acceptable replacement tires by designated size provided to retailers. That is not practiced in the RV trailer industry. Therefore, consumers have been provided with a NHTSA mandated statement in the vehicle owner's manual to seek approval/recommendations for replacement tires from the vehicle manufacturer. When you use unapproved replacement tires you're then operating in an unsafe zone. I assume how unsafe will be determined by authorities investigating your vehicle for safety.

PSFORD99 · 10-22-2020, 11:28 AM

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Originally Posted by CalandLinda

The 85s invalidate the vehicle owner's manual, tire and load placard and the vehicle certification label. The 80s do not.

Maybe you could tell us the the problem other then the sticker. Maybe some legal problem or just some rule that really doesn't amount to much.

IMO you can't go too wrong with some added weight rating, and a bit of height if out of level is a concern. Although its not much ,but every bit helps.

beeje · 10-22-2020, 01:25 PM

Quote:

Originally Posted by PSFORD99

Maybe you could tell us the the problem other then the sticker. Maybe some legal problem or just some rule that really doesn't amount to much.

IMO you can't go too wrong with some added weight rating, and a bit of height if out of level is a concern. Although its not much ,but every bit helps.

Height can be a problem not only between the 2 tires (x-chocks may not fit) and you may start to have tires rubbing the underside of the trailer tearing up the draco covering. Bin there done that.

Sdexte · 10-23-2020, 10:23 AM

Thanks for all the replies and suggestions. I’ve made my choice, tires ordered, getting them installed on Monday. I guess we can end this thread now.

phillyg · 10-25-2020, 03:14 PM

CalandLinda goes by the book. The rest of us change from 80s to 85s with little hesitation or regard to the rules. We're rebels, doncha know.

CalandLinda · 10-25-2020, 04:37 PM

Quote:

Originally Posted by phillyg

CalandLinda goes by the book. The rest of us change from 80s to 85s with little hesitation or regard to the rules. We're rebels, doncha know.

When you opted to use 85s in place of OE 80s, you "plus sized your tires. Did you follow the industry wide standards for plus sizing?

PSFORD99 · 10-25-2020, 06:15 PM

Quote:

Originally Posted by CalandLinda

When you opted to use 85s in place of OE 80s, you "plus sized your tires. Did you follow the industry wide standards for plus sizing?

Thats twice you have stated " Did you follow the industry wide standards for plus sizing. Its great to ask ,but I am, me included do not have a clue. Why don't you give us the standards for upsizing.

As one said we are rebels ,with no regard for the rules.

CalandLinda · 10-26-2020, 04:26 AM

Quote:

Originally Posted by PSFORD99

Thats twice you have stated " Did you follow the industry wide standards for plus sizing. Its great to ask ,but I am, me included do not have a clue. Why don't you give us the standards for upsizing.

As one said we are rebels ,with no regard for the rules.

Tire industry rules, regulations, and standards support safety. To completely disregard them is unwise and irresponsible.

beeje · 10-26-2020, 04:50 AM

What is unwise is leaving any tire that has a history of blowouts on your camper. If Upsizing gives you more weight capacity and doesn't cause any rubbing problems I say go for it.

Dave W · 10-26-2020, 05:04 AM

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Originally Posted by CalandLinda

Tire industry rules, regulations, and standards support safety. To completely disregard them is unwise and irresponsible.

Give us a break! I think we have had way more then enough of your preaching on numerous RV sites. There is no rule or regulation on upsizing if the form fit and function are equal or better then what the manufacturer supplies on any vehicle. Yes, I did the search. The manufacturer supplies the lowest cost part that will meet (often barely) the needs of a particular vehicle.

PSFORD99 · 10-26-2020, 09:18 AM

Quote:

Originally Posted by CalandLinda

Tire industry rules, regulations, and standards support safety. To completely disregard them is unwise and irresponsible.

As said lets have the rules for upsizing , not just its unwise or irresponsible. I think you know as well as we do, nothing unwise or irresponsible about gaining some weight rating, and a safer tire. Only one drawback ,and as said if they rub. If you have correct size wheels that are rated for 110 psi, not a problem.

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