Got Super Singles?

if u get a flat wit the singles can u limp 2safety like wit regulars

 

I have them on tractor and trailer but were installed when t/t was new so no before/after mpg#s. I am very happy with them and will continue to use them.

there is a local fleet here that was one of Michelins test fleets and what they report is a .1 mpg improvement over Michelins other best mpg tire XDA2 energy(only availible in lp 22.5) they did not test against any other tire.
remember,there is no low cost alternative to a wide based single and you should carry a mounted spare if you can. i have heard some 1500.00 horror stories to replace tire/wheel roadside.

IMO,I think you could do as well and maybe better running a Michelin all position tire like a XZA3(straight tread) or Yokohama 617(also straight tread) the 617 has same low rolling resistence as XZA3. if you feel you need a lug type tire then XDA2 energy. if you need 11r 22.5 or lp24.5 then XDA3.
If you do go wide based singles,stay away from XDA HT(matches to 11r22.5) you wont see any mpg improvement until its about 30% worn. I have more info/data if you need it. good luck

 

whats the weight difference? i have had alot of drivers ask me whats the advantages but we don't do any tire work here and i have not really read up on them.

 

dual tires with aluminum wheels to singles with aluminum about 110 lbs per position. i saved 900 lbs tractor and trailer

 

We switched 2 tractors and saved about 300 per truck. We did it purely for weight but I believe there was a sight fuel mileage improvement. However they are very expensive, don't last as long, terrible on snow and if you have a highway with groves from heavy trucks it's a full time job keeping the truck in your lane. But they're very easy to mount and we've had zero problems out of them. We've ran them for just about a year and only had one blowout and it was an old casing that came on a used trailer. I don't know if I'd buy them if weight wasn't an issue. One of the trucks we use them on is a W900 that pulls a 43' high side grain hopper (also with super singles) and only weighs 21700# with a C-12. Most of our other trucks haul either lumber or steel so I wouldn't gain much by switching.

A good Michelin X1 drive tire can cost up to $900.00 each so it's a pretty big investment to switch.

 

I have them on a trailer and just got charged $1120 for a roadside service call for a tire that was cut, the wheel didn't sustain any damage, luckly.

As far as fuel mileage I didn't see any improvement, the weight savings was a little over 300Lbs, tire wear increased from the duals. So unless you need to gain payload capacity, there isn't a lot of benefit to them in my opinion

 

I've seen some trucks/trailers have hooks welded to the frame for a chain. If a tire blows you can dump the suspension, run a chain under that side of the axle and lift the suspension. Only works if your empty I'm sure but it works. Sure beats a roadside service.

 

I heard two things about them yesterday... One is that in the state of Missouri that you have to have the chain on the axle, it's the law. Is that true?
Also, was told that you should have the tractor computer reset if you want to get a real reading on your fuel savings. What's the take on that?

Thanks!

 

ECM mpg calculation is never accurate.Cats seem to be within a few tenths. DD is usually way higher than actual . so useing these as a gauge
gives nothing more than an idea of mpg.
The best way is to run 100 mi with mileposts and check accuracy odometer. if the odometer shows say,101.2 then subtract 1.2 mi per hundred when manually calculating mpg fill to fill. thats the most accurate way i know of

If you have no tire/wheel in one position, you would need to chain it if you
intend to drive on highway. cant do it without a chain. never heard of it being a law anywhere