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Tires - To Sipe or Not to Sipe Toyo M154s

KendallP
Explorer
Explorer
Hey gang,

I'm leaning a certain direction, but I'm interested in your opinions without the influence of my research.

Normally, I would not consider siping in favor of buying the right tire for the job and letting the engineers of the manufacturer decide how much or little siping to add.

But this is one case where I would consider it. Read on to find out why.


The Rig:
2004 Winnebago Journey 34H DP on a Freightliner Chassis
GVWR - About 28,000 lbs

OEM Tires:
Michelin XRV 255/80R 22.5

Replacement Tires:
Toyo M154 265/75R 22.5
(The last set of these went 10 years and looked like new, inside and out, with 10,000 miles on them)

Driving conditions:
Mostly Oregon and western states
Wet, dry. Hot summers. Rarely snow, but possible.


Unlike the Defender LTX M/S tires on the wife's Highlander, these particular Michelins have a very poor reputation for early sidewall cracking and such. And... as "luck" would have it, they must have worked a deal with Freightliner in order to get their own, proprietary tire size for these rigs.

The similarly-sized, Toyo M154s are known to be one of 2 preferred replacements for the way-overpriced Michelins. Toyo considers them All-Position commercial tires. "Recommended" for steers in long-haul, regional and urban. "Suitable" for drives in regional and urban, but for trailer when it comes to long-haul. Makes sense to me. I usually see more aggressive tread on the commercial drives around here. Of course... tires like those would be louder than these Toyos.

The tread patterns are very similar, but I noticed what almost appears to be aftermarket siping in photos of the Michelins and Michelin does brag on the siping in their description.

The Toyos have already been installed by Les Schwab Tires. They still performs the siping service. Since they were installed so recently, they want $113 total to remove, sipe and replace all 6. Definitely not doing that for profit. Especially since the rubber alone weighs almost a hundred pounds. I would require they still warranty the tires in writing.

Note: I was able to resize the Toyo photo, no problem. But I keep running into a stretching issue with the Michelen. It's a 3x2 aspect ratio. Resizing to 600x400 or 300x200 should work, but it doesn't. It stretches it really wide. So for now, you're stuck scrolling to read. Sorry.





Cheers,
Kendall
45 REPLIES 45

toedtoes
Explorer III
Explorer III
KendallP wrote:
toedtoes wrote:
So, you buy tires that were carefully researched and developed by the manufacterer and someone at a tire shop recommends they make a bunch of slashes in the tire to make it work better...

If the tire isn't performing to standards, get new tires.

Respectfully, you missed the point. No one said the tire isn't performing to standards.

It's all in the OP.


I'm not missing the point. I just don't see why anyone would consider this.

If the tires are appropriate and satisfactory for the vehicle/conditions, then siping the tires is a waste of money or could reduce performance or life of the tire.

If the tires are aging out, then siping them will not reduce their chance of failure, and may potentially increase that chance. That's like putting two bullets in the gun instead of one for a game of Russian Roulette.

If the tires are not appropriate or satisfactory for the vehicle/conditions, then siping will not make them suddenly appropriate or satisfactory. The only solution for that is to replace them with different tires.

If the Michelin tires are siped by the manufacturer, then I would contact them and ask why they need to sipe them before making a decision. If they are siped aftermarket but before purchase, then I would not buy from that shop.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)

KendallP
Explorer
Explorer
RedRollingRoadblock wrote:
When I first saw the link about tire siping the first thing that popped in my head was Schwawb. They were (still?) heavily into that. Any more I tend to avoid them for more than one reason. Used to be a good place.

Yeah. My family began using them in the late '70s, I believe it was.

Les died. It was still ok for awhile and then the kids eventually sold out.

I looked far and wide around here for someone who could source the Yokohamas, but to no avail.

That said, I think my local shop is still good. Most of the local truckers still go there and seem really happy.

What's funny is... when I set up the appointment, they didn't offer the siping. Per the OP, it was the photo of the Michelin that even sparked the memory that they used to "offer" / "upsell?" that service. I meant to look into it before the install, but an emergency sped up the process in a big way.

In fact... the tech talked me out of balancing the drives in place of their much cheaper liquid stuff they use for all the truckers. He came across as a real honest young man. Well... he's probably in his mid 30s and has a family... but I'm getting to the age where most men seem young.

I heard about his family when he told me the story of how he almost bought the farm. With the benefit of experience, he now has all air ride rig owners dump the air first. Said a couple of kids from up north were crushed from leaking air that way. Doesn't sound like a good way to go.

They mounted them about a month ago and I called them today to ask if they still even do the siping
Cheers,
Kendall

RedRollingRoadb
Explorer
Explorer
When I first saw the link about tire siping the first thing that popped in my head was Schwawb. They were (still?) heavily into that. Any more I tend to avoid them for more than one reason. Used to be a good place.

KendallP
Explorer
Explorer
toedtoes wrote:
So, you buy tires that were carefully researched and developed by the manufacterer and someone at a tire shop recommends they make a bunch of slashes in the tire to make it work better...

If the tire isn't performing to standards, get new tires.

Respectfully, you missed the point. No one said the tire isn't performing to standards.

It's all in the OP.
Cheers,
Kendall

toedtoes
Explorer III
Explorer III
So, you buy tires that were carefully researched and developed by the manufacterer and someone at a tire shop recommends they make a bunch of slashes in the tire to make it work better...

If the tire isn't performing to standards, get new tires.
1975 American Clipper RV with Dodge 360 (photo in profile)
1998 American Clipper Fold n Roll Folding Trailer
Both born in Morgan Hill, CA to Irv Perch (Daddy of the Aristocrat trailers)

KendallP
Explorer
Explorer
Bruce Brown wrote:
$113 each or total???

Total.

OP updated accordingly.

You're a mod. Do you have any idea why I couldn't shrink the Michelin photo without stretching it wide? Something in the HTML code the system doesn't agree with, perhaps?
Cheers,
Kendall

time2roll
Nomad
Nomad
I thought siping was to help traction mostly on ice maybe some on snow. Considering the vehicle and stated driving pattern I would not sipe the tires.

Bruce_Brown
Moderator
Moderator
$113 each or total???
There are 24 hours in every day - it all depends on how you choose to use them.
Bruce & Jill Brown
2008 Kountry Star Pusher 3910

KendallP
Explorer
Explorer
MT BOB wrote:
In my experience,many "swore by it" usually within a short period of time after having the new tires installed.Without giving consideration to the new tires.As time went on,I expect lots,like some I have talked to,experienced premature tire wear. More "traction",more wear.

Makes sense.

However, most motorhomes have more than plenty of tread left at the 6, 7 or 10 year mark when many recommend replacing them simply due to age.
Cheers,
Kendall

MT_BOB
Explorer
Explorer
In my experience,many "swore by it" usually within a short period of time after having the new tires installed.Without giving consideration to the new tires.As time went on,I expect lots,like some I have talked to,experienced premature tire wear. More "traction",more wear.

rhagfo
Explorer III
Explorer III
I actually had used tires sipped at LS, they were about 50% tread and had poor wet traction. I had them sipped and far less tire spin on take off.
Russ & Paula the Beagle Belle.
2016 Ram Laramie 3500 Aisin DRW 4X4 Long bed.
2005 Copper Canyon 293 FWSLS, 32' GVWR 12,360#

"Visit and Enjoy Oregon State Parks"

KendallP
Explorer
Explorer
MT BOB wrote:
Ah sorry I got it wrong. For what it is worth,I am a mostly retired mechanic,and everyone I know that got their tires siped,did it 1 time.

Interesting.

I've been offered it many times, but never accepted.

Seems like many people swear by it.
Cheers,
Kendall

MT_BOB
Explorer
Explorer
Ah sorry I got it wrong. For what it is worth,I am a mostly retired mechanic,and everyone I know that got their tires siped,did it 1 time.

KendallP
Explorer
Explorer
MT BOB wrote:
https://jalopnik.com/why-aftermarket-siping-on-your-new-tires-is-********-1823804912

That's a good one, MT BOB. That one came up in my research.

Here's the clicky version...

https://jalopnik.com/why-aftermarket-siping-on-your-new-tires-is-********-1823804912
Cheers,
Kendall

MT_BOB
Explorer
Explorer
https://jalopnik.com/why-aftermarket-siping-on-your-new-tires-is-********-1823804912