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Old 01-29-2020, 06:19 PM   #1
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what size tires

If there is 11x22.5 tires on the bus now can i put any other size on?Its an old bus with dayton rims.
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Old 01-29-2020, 06:41 PM   #2
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11r22.5 is the standard commercial truck tire. You could obviously go smaller (10r22.5, 295/75, 275/70, etc.) but the top speed will be reduced. Did you get a line on a cheap set that is a different size?
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Old 01-29-2020, 07:07 PM   #3
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I have been checking around on new and used tires. I looked today at some that looked pretty good that where on a bus. Somebody was scrapping the bus. They were 275/70. This guy scraps out a lot of buses. I never saw so many engines stacked up waiting to go somewhere.
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Old 01-30-2020, 07:02 AM   #4
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The 275/70 tires are around 37" tall. The 11r22.5 are around 41" tall. This is a pretty big drop in size and top end. Unless you are doing just city or lots of hill climbing, stick with 11 or 10r's.

We have the opposite problem. Our bus has 255/70x22.5's and I found a nice set of almost new 10r22.5s, but they are too tall.
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Old 01-30-2020, 08:01 AM   #5
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We have the opposite problem. Our bus has 255/70x22.5's and I found a nice set of almost new 10r22.5s, but they are too tall.
Time to install a lift kit!
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Old 01-30-2020, 08:56 AM   #6
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Time to install a lift kit!
Flat floor, air suspension, plus we have some brandy new 255's on the way....
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Old 01-30-2020, 11:49 AM   #7
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I put 22.5 lp's on my truck and it rides like a buckboard. Someone here told me that 11r22.5 has more flexiblility in the sidewalls and yield a better ride.

Something to consider.
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Old 01-30-2020, 12:00 PM   #8
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low profile = low speed but I guess those mini donuts help you get up a hill!
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Old 01-30-2020, 04:07 PM   #9
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I have been checking around on new and used tires. I looked today at some that looked pretty good that where on a bus. Somebody was scrapping the bus. They were 275/70. This guy scraps out a lot of buses. I never saw so many engines stacked up waiting to go somewhere.
timohara.
is this bus scrap yard in NC or near NC?
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Old 01-30-2020, 06:33 PM   #10
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timohara.
is this bus scrap yard in NC or near NC?
He's in statesville nc he buys up alot buses cuts the engine out saves afew other things and scrapes the rest made me kinda sad the day I was there 84 Thomas 91 Thomas shorty 86 thomas vista he does alot of used tires on rims
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Old 01-30-2020, 07:25 PM   #11
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Does this gentleman in Statesville have a name and phone # ?
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Old 01-30-2020, 07:39 PM   #12
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Don't forget to consider wheel width. Every tire's going to have a design-wheel width upon which the performance characteristics are based. Generally speaking you have some latitude between the next size up and/or down wheel, but anything other than tire size that agrees with the design wheel width will deform slightly, altering the contact patch and potentially affecting variables like traction, wear, or mileage.

For reference (see pages 74/75):

https://commercial.bridgestone.com/c...08-07-2018.pdf
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Old 01-30-2020, 10:53 PM   #13
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Its Wheeler engine cores the only # I have 3139956267 I think he his name Willard If you want e mail me I'll be going back to look for a rear end with better gears
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Old 01-31-2020, 12:53 AM   #14
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If you install tires too wide for the rims it's probably no big deal on the front wheels unless they touch the tie rods at full lock, but it could be A Very Bad Thing on the rear duals: there's a high likelihood they would rub together, and that's a guaranteed red flag to any DOT inspection. The most important thing with tires is to never use a lower-rated tire than the manufacturer's specified size(s) on the vehicle's data plate, and to keep the same or similar RPM (revolutions per mile) rating; if the RPM is different by more than a very few percent the speedometer/odometer will need to be recalibrated.

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Old 01-31-2020, 07:01 PM   #15
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If you install tires too wide for the rims it's probably no big deal

At a bare minimum, the tire isn't going to wear as designed, the mounted dimensions won't agree with what's published, & the ride quality will suffer. Maybe not 'end of days', but I'd consider those issues significant. Though admittedly far less problematic than rear tires rubbing as you point out.
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Old 02-01-2020, 08:23 AM   #16
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At a bare minimum, the tire isn't going to wear as designed, the mounted dimensions won't agree with what's published, & the ride quality will suffer. Maybe not 'end of days', but I'd consider those issues significant. Though admittedly far less problematic than rear tires rubbing as you point out.
yes 10r22.5 uses a narrower rim than a 11r22.5. however i seen lots of the low profile series use the 11r22.5 rim
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Old 02-01-2020, 08:38 AM   #17
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yes 10r22.5 uses a narrower rim than a 11r22.5. however i seen lots of the low profile series use the 11r22.5 rim
Its 100% ok to put an 11R on a 7.5" wheel as long as the tires don't rub each other in the back.
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Old 02-01-2020, 10:56 AM   #18
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Its Wheeler engine cores the only # I have 3139956267 I think he his name Willard If you want e mail me I'll be going back to look for a rear end with better gears
Thank you very much for the info....I'll give him a holler. I'm looking for the same thing.
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Old 02-06-2020, 02:45 AM   #19
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If there is 11x22.5 tires on the bus now can i put any other size on?Its an old bus with dayton rims.

What tires are listed on the tag for the gvwr? That may answer your question for you.
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Old 02-06-2020, 09:35 AM   #20
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11x22.5 on the rear and 10x20 steer on the front manufacturer listing 825x20 with 20x7 rims what I'm trying to do is drop the rear about 6in so it will fit in the garage the door is 10 foot high bus is 10ft4in
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