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Old 10-02-2021, 01:59 PM   #1
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I hate shopping for tires

I guess I'm just old and cranky but I hate shopping for tires and since the drive and tag axles are 7 years old, it's time.

My Aspire has 275/80R22.5. I'm ignorant on what exactly will fit on these wheels, has anybody been successful in changing the tire size while keeping the same wheels. I'm looking at the toyo tires and they don't have this size of tire.

I think I'm also going to put the centramatic wheel balancers on each axle too. Has anyone used these yet?
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Old 10-02-2021, 02:18 PM   #2
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Quote:
Originally Posted by dave&ginny View Post
I guess I'm just old and cranky but I hate shopping for tires and since the drive and tag axles are 7 years old, it's time.

My Aspire has 275/80R22.5. I'm ignorant on what exactly will fit on these wheels, has anybody been successful in changing the tire size while keeping the same wheels. I'm looking at the toyo tires and they don't have this size of tire.

I think I'm also going to put the centramatic wheel balancers on each axle too. Has anyone used these yet?

the Toyo M177 in 295/75 22.5 is their equivalent - its .8” wider and .1” taller. Ask about it and see what they say. From what I recall this is their replacement for Michelin 275/80.
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Old 10-02-2021, 02:29 PM   #3
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found it:
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Old 10-02-2021, 03:33 PM   #4
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found it:

Thank You!

I'll try to give our local tire guy a call on Monday, then compare the national dealers.
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Old 10-02-2021, 04:01 PM   #5
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You could always just buy a new coach! I heard they came with new tires!
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Old 10-02-2021, 04:05 PM   #6
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Here’s a link:

https://www.toyotires.com/media/3313..._v18-42419.pdf

that screen shot came from page 72 - load and inflation tables.
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Old 10-02-2021, 04:45 PM   #7
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You could always just buy a new coach! I heard they came with new tires!
Gary we thought about it! I even considered selling this one and going back to a 5th wheel but after looking around we've decided to keep the one we have. I just can't find anything thats worth what the expense would be. This classic is just too reliable.
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Old 10-02-2021, 04:51 PM   #8
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I just put a new set of Sailun's on our '04 Pace Arow and boy are they quiet.
Price was very reasonable too.

Mike in Colorado
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Old 10-02-2021, 04:55 PM   #9
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Approved Rim Width

One caution when selecting replacement tires is to be sure that the new tires are approved for your rims. My coach is in storage, so I can't confirm, but I recall that my '18 Anthem is equipped with 8" width rims.

If you look on page 51 of the Toyo document linked above by R. Wold, you'll see that the Toyo M177 in 295/75R22.5 shows "Approved Rim Width Range" is 8.25" - 9.00"

I recall some discussion at my Spartan Academy in June '18 regarding rim width being an important consideration when selecting replacement tires. Your rims have the rim width stamped on the them, so, that's easy to confirm.

I'd be careful installing the M177 in a 295 width on a rim that's less than the recommended 8.25".

Take care,
Stu
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Old 10-02-2021, 06:35 PM   #10
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After a review of my notes from my June '18 Spartan academy regarding rim width and approved tires, I believe that the concern was regarding the 315 width steer tires mounted on 8.25" width rims.

I believe that my '18 Anthem has 8.25" width rims (that's contrary to my previous post) at all wheel positions and came from the factory with 315 width steer tires and 295 width tires on the drive and tag axles. The concern arose from Michelin's recommendation that the 315 width tires be installed on 9" width rims.

Michelin did publish a notice in their '19 RV Tire Guide that contains this:

__________________________________________________
MICHELIN 315/80R22.5 LRL TIRES USED IN MOTOR COACH AND MOTOR HOME SERVICE

This notice addresses only replacement fitments on Motor Coach and Motor Home (commonly referred to as RVs) vehicles produced up to the end of 2017 where the FMVSS placard references the fitment of 315/80R22.5 on 8.25x22.5 wheels.

Vehicles used in Urban service such as Transit Buses or Waste/Refuse vehicles are specifically excluded from this exception without special dispensation.

Michelin has rescinded its approval to use 8.25x22.5 wheels on 315/80R22.5 dimension tires for new vehicle production effective January 1, 2018.

Michelin’s position is that these Motor Coach and Motor Home (commonly referred to as RVs) vehicles produced before the end of 2017 with 8.25x22.5 wheels may continue to be fitted with current 315/80R22.5 LRL products until the vehicles are retired from active service.

________________________________________________

That notice did include a chart showing a reduced load capacity for the 315 width tires mounted on 8.25" width rims.

So, I now believe that Spartan used 8.25" width rims for the '18 model year coaches on the K2 chassis.

Also, please note that the Michelin approval for replacement 315 width tires to continue to be used until the vehicle is retired only applies to Michelin tires. I'd be particularly careful to follow other tire manufacturer's recommendations, especially with steer tires.

Take care,
Stu
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Old 10-02-2021, 07:03 PM   #11
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This should help some:

2015 Aspire chassis specs:

https://www.entegracoachforum.com/in...sa=media;in=75

Doesn't give rim size but given tire sizes, Id be surprised if they weren't 8.25”

Wheels
Accuride Polished Aluminum Wheels with Dress Kit (2) Steel Wheels on Inside Dual Wheels

Tires
Front: Goodyear G670 RV 295/80R 22.5 LRH
Rear: Goodyear G670 RV 275/80R 22.5 LRH
Tag: Goodyear G670 RV 275/80R 22.5 LRH
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Old 10-02-2021, 08:51 PM   #12
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Dave

We have a 2012 Aspire 295/80/22.5 on front and 275/80/22.5 on drive and tag! We recently switched all to 295/80/22.5 and Toyo M144s. Very pleased with the ride and we used motorhometires.com - their mobile tech came to my storage and changed them.

If you go bigger, I think you’ll need new rims. But also check for the gap between the drive tires.

Hope that helps!!
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Old 10-02-2021, 09:14 PM   #13
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Call a T/A sales manager and ask him to give you his rock bottom price........
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Old 10-02-2021, 09:20 PM   #14
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The good news is that you don't likely need to replace your tires. 7 years is when many tire manufacturers say they should be regularly checked by a tire expert, not replaced unless it's called for by condition. 10 years is the typical life span of big tires. Especially truck tires.

Check with your tire manufacturer's spec sheet on how long they should last in low mileage situations.
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