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Old 03-16-2019, 04:51 PM   #1
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Super Single Rear Tires

Seen someone had replaced the rear tires on their bus with some Super Singles. Claimed less rough of a ride, as well as a speed boost which is greatly needed. Thoughts? Concerns?
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Old 03-16-2019, 06:16 PM   #2
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A speed boost would come from taller tires - which will depend on if there's room under your bus for them, and if you can find wheels that will hold them. Super singles won't automatically give you a speed boost.

I've heard the super singles are more expensive, you'd have to buy new rims for them, and you loose the safety factor of duals - you can limp a blown dual off the highway, but if you loose a super single, you're stuck where you are on the side of the highway.

From what I've heard, it's not something I'd be interesting in throwing money at yet. I'd rather spend more for a better bus initially, or spend more money on solar/battery setup. Just my 2 cents.
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Old 03-25-2019, 10:04 PM   #3
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You’d also have to consider the weight factor when changing them on the side of the road. Super singles are SUPER heavy.
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Old 03-25-2019, 10:36 PM   #4
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With duals I basically have two spare tires. If I get a rear flat I just slow down and look for a tire shop. If a front tire goes flat I can swap out one of the rears and get on down the road.
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Old 03-26-2019, 06:02 AM   #5
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Super singles also give a slightly more narrow track width. Most of the time not a big deal, however I can just see going through a construction zone on the highway concrete barriers each side, rough paving. Blow a super single then and no room to recover. I did have this happen with duals, and was real happy to have the extra tire.
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Old 03-26-2019, 06:20 AM   #6
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I havent yet understood the benefits of super singles.. biut I see them more and more in the wild..



I do wish i could get taller tires for my 19.5 rims but seems like everything is low pro..
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Old 03-26-2019, 07:26 AM   #7
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From what I understand some of the benefits can be lower rolling resistance, reduced unsprung weight overall, less parts per hub/wheel assembly, and not having to abide by that one DOT rule about the correct gap between dual rear tires. Just what I can come up with!
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Old 03-26-2019, 09:48 AM   #8
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Quote:
Originally Posted by Mark_In_MA View Post
A speed boost would come from taller tires - which will depend on if there's room under your bus for them, and if you can find wheels that will hold them. Super singles won't automatically give you a speed boost.

I've heard the super singles are more expensive, you'd have to buy new rims for them, and you loose the safety factor of duals - you can limp a blown dual off the highway, but if you loose a super single, you're stuck where you are on the side of the highway.

From what I've heard, it's not something I'd be interesting in throwing money at yet. I'd rather spend more for a better bus initially, or spend more money on solar/battery setup. Just my 2 cents.
I agree. I was looking into the supersingles aswell descided on 11r 22.5s instead and replaced the 9rs. For the very same reason there expensive and if you have a blow out you can atleast make it to a shop on 1 drive. Other factor it seems every shop can find or will have a used 11r22.5. Did find the ride better on my bus with the 11s aswell
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Old 03-29-2019, 07:59 AM   #9
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Super singles are being used because of fuel efficiency. Most won't travel enough to warrant the increase in cost, but a fleet wide conversion is a different story.

In my experience they ride roughly the same as duals, and the speed increase will depend on the diameter difference, which is easy to measure.
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Old 03-29-2019, 08:43 AM   #10
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Quote:
Originally Posted by Booyah45828 View Post
Super singles are being used because of fuel efficiency. Most won't travel enough to warrant the increase in cost, but a fleet wide conversion is a different story.

In my experience they ride roughly the same as duals, and the speed increase will depend on the diameter difference, which is easy to measure.



is there any in general ride improvement on duals going to taller or wider tires? I have air ride rear but those little 225/70R19.5s go "Ka-Bang!" over any bump it seems.. I dont notice the same on my DEV bus that has full size.. im thinking of going to a 245/70R19.5.

-Christopher
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