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Tbone95 
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Location: Michigan
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 Topic: Truck Tires
Posted: 13 Oct 2020 at 2:06pm |
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Sort of need a couple of new tires. 22.5 inch Load Range G's.
I see there are "open shoulder" and "closed shoulder" types. While I might have a visual of what that means, what does it really mean, and why would I want one or the other? These would be for steer-axle tires. If that matters.
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LouSWPA
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Posted: 13 Oct 2020 at 2:16pm |
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well, looks like I am about to learn something new!
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Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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steve(ill)
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Posted: 13 Oct 2020 at 3:08pm |
THey are talking about the outer EDGE of the tread.. It can have grooves to PUSH out water / etc... Or it can be SOLID for additional road wear..
Bridgestone Americas Tire Operations, says lug patterns can be closed or open shoulder design, and are typically used on drive axles. Typically, closed shoulder lug patterned tires feature wide shoulder ribs to promote longer mileage and even shoulder wear. Open shoulder lug pattern tires have blocks on the shoulder instead of a continual shoulder rib and their design features a more aggressive look for increased traction in rain mud and snow. Rib patterns can be straight or zigzagged, and typically are used on steer and trailer axles. “A straight rib pattern is designed for high mileage, good fuel economy and resistance to irregular wear,” he says. “They usually have a ‘defense groove,’ a straight groove cut into the shoulder rib which aids in resisting irregular shoulder wear.” |
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Like them all, but love the "B"s.
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steve(ill)
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Posted: 13 Oct 2020 at 3:12pm |
closed on the left............ open on the right photo
i believe these are "normally" for a semi tractor... I have never seen "closed" tires for a 1/2 - 3/4 ton truck.
Edited by steve(ill) - 13 Oct 2020 at 3:14pm
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Like them all, but love the "B"s.
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Tbone95
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Posted: 13 Oct 2020 at 3:27pm |
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Thanks Steve. That’s the visual I had, BUT, the first sentence of the writing is confusing. It says can be open or closed, and usually used on drive axle. WHICH ONE is usually used on a drive axle??? And in my brief shopping so far, I see either listed as “all position”.
Traction versus wear aspects make sense.
This is a hoist stake truck, a bigger truck, not a pickup. 2500 miles per year would be a lot.
Edited by Tbone95 - 13 Oct 2020 at 4:20pm
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Tbone95
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Posted: 13 Oct 2020 at 4:18pm |
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Edited by Tbone95 - 13 Oct 2020 at 4:19pm
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DiyDave
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Posted: 13 Oct 2020 at 5:22pm |
Go with closed shoulder, on steering axle. Less noise, longer wear...JMHO! 
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steve(ill)
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Posted: 13 Oct 2020 at 5:32pm |
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the article says that OPEN and CLOSED can both be used on DRIVE axles.. Gives you the opinion ( without saying it) that you dont use the CLOSED on the steering... Like DAVE, i have seen many CLOSED on the front end for steering... Keeps the wear pattern to a minimum... Normally the "alignment" of old farm trucks is "not so good" and the CLOSED can lengthen the life of a set of tires. ..... If your on the HIGHWAY all the time with a semi tractor, then i might not use CLOSED for the steering.... better steering / water relief/ with open..... but on FARM TRUCKS, yes , closed.
Edited by steve(ill) - 13 Oct 2020 at 5:36pm
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Like them all, but love the "B"s.
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Tbone95
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Posted: 13 Oct 2020 at 6:00pm |
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Thanks again Steve and thanks Dave. Steve, not sure how you reached that conclusion about what the article says and implies ....but I trust the advice. Thanks guys.
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HD6GTOM
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Posted: 14 Oct 2020 at 9:44pm |
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Tbone. Owned a tire shop over 20 years. I never seen an open shoulder tire on a steer axle in 22 or 24.5 tires. Open shoulder are drive tires. With 1 exception - cement truck steer tires big wide tires were all open shoulder.
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Coke-in-MN
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Posted: 14 Oct 2020 at 11:17pm |
Every truck I drove have had line style tread on steer axles , closed outer tread or a sipped cut in that shoulder for release of water . Even the super floats used on my dump trucks from 13.80R x 20 were a aggressive line type tire tread with closed shoulders the ones on quint dumps are rated at 18,000 lb and also are semi aggressive but more line type tread - link shows tread and use pictures https://commercial.fountaintire.com/images/Kelly%20Commercial%20Truck%20Product%20Brochure.pdf
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
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Tbone95
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Posted: 15 Oct 2020 at 7:04am |
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Thanks Coke and Tom. When I get some, I'll surely go with the closed shoulder. Drive axle tires look OK for now. Interesting, in Coke's link, NUMEROUS closed style tires listed as "all position". If/when I need drive tires, think I would go with open style, as in the field/mud at times.
It's about a 50 mile round trip to the elevator, nice state roads, no Interstate. 1 stretch of road is speed limit 65mph, where I do ~ 60 on that empty.
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bobkyllo
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Posted: 21 Oct 2020 at 6:19pm |
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It all depends on what your application is going to be. Are you primarily going to be in areas that need extra traction such as a field? Then you would want open shoulder. Do you plan to mainly be a pavement pounder? Then a closed shoulder will be better. Closed shoulder will wear longer and will not throw as much mud and gravel.
All position means you can put that tire any place on your truck. Even steer. I'm not sure why you would want to do that but some people are odd.
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