super single tires

Just a FYI on the ice thing,we are told in that "type" of situation to blow the airbags on tractor,all the possible weight transfers to ur drives and in theory gives you more "tractive" effort.I have done this and it really works,albeit i t was in parking lot and i was trying to get moving
once moving recharge the bags

Btw on our new T-660's we have tag axles and thus no way to lock in a axle so KW has this in there manual as a way to get moving with a tag axle

 

Back when I was 21, I knew everything too! You can believe whatever you want, but facts are facts. Companies aren't buying these things because they are simply more expensive. To add insult to injury, I have 4 years of college in the automotive/heavy truck field, and I've provided you with links. It's time you provide me with some links to prove your claims. There are three major drawbacks to using these tires, yet you haven't mentioned a single one.

 

ok so since your going to play the one up game...

Hmmm I graduated from BTC as a A&P Aircraft Technition and am a Auto Mechanic. I spent 5 years in the USAF Auxilary so I know a thing or two about aerodynamics...


And I never said I know everything, and you have what a few months in trucking? I've had my Class A CDL since March 28th 2008.

And this isnt the first time companies have bought into the SS tire BS. When they first came out in the '90's companies bought them then too, then saw all the downsides and ditched them, and when fuel skyrocketed in 2008 the companies that make them started pitching them again and companies yet again fell for it.

I would have posted all of the downside of them but since theres what 5 pages of responses listing them I thought you'd have read them but since you only seem to be able to read my post (my guess is because you see someone younger then you that you think you can walk all over just because of my age) sry but I dont think so


Pro's of SS:

#1 They're light, makeing it easyer to scale and haul more weight.
#2 They have 1.5" less tread toutching the ground, giveing them less rolling resistance which can give you up to a .02mpg increase in fuel economy


Con's of SS:

#1 They have 1.5" less tread toutching the ground thus giving you 3" less touching the ground which means Less Traction, Longer stopping distance when tires are locked up, and a skinnyer less stable stance

#2 The tread is 1/4 as deep as Duals giveing you less tread to bit with

#3 SS tread is not siped like duals can be so NO traction on ice

#4 SS tread is not luged like Duals so it can't push out snow

#5 When you blow a SS tire you are also going to destroy the rim

#6 Because of #5 you'll be spending allot of time and $ on the side of the road, because SS tires and rims are not nearly as common to have in stock (wounder why?)

#7 SS are WIDE thus spreading the weight out on snow and ice which means NO TRACTION, ever look at snow tires???????? The amount of tread touching the ground is smaller then summer tires....GEE I wounder why.... OH YA because like snow shoes wide means your going to stay on top of the snow when what you really want it for the tire to go THREW the snow and push it out of the side of the tire allowing you to make contact with the ground/road.

#8 SS tires also cost more then a regular tire

#9 The thiner tread with the closed sidewalls also will not allow water out makeing it allot easyer to Hydroplane

#10 with SS you cannot limp to a shop when you blow a tire, you are STUCK on the road!




Hmmmm Looks like more then 3 things and unlike you I went into detail with actual knowlage and factual descriptions of how things work so your Bookworm #$$ can learn how things work. You can study stuff in a book or online all day but until you can go out and fix it and understand how it actually works it doesnt matter what your 8.5 x 11 piece of paper says hanging on the wall.




American Trucker

 

There has to be something to the mileage gain as well as the extra weight capacity, The company I work for ( Rieth-Riley asphalt) tried them on a few trailers two years ago "sixteen per" Now every trailer we load is riding on supers. I have seen for myself they absolutly wear longer than duals. There is not a trailer out there that can scrub off tires like a loaded eight axle live bottom. While they may not be good for everyone or every application they do have their place.

 

Want to check out your fuel savings? Michelin not only rates their own tires, but those of the competition. Fill out the calculator fields, choose some tires and have at it.

http://www.michelintruck.com/michelintruck/toolbox/FuelSavcalculator.jsp#

American Trucker: That's a very simplistic idea of the factors in tire choice that contribute to fuel economy.

 

See the OP, he asked what the pros and cons are thats what I'm giving him. What are you talking about, are you talking about straight tread vs. lugged tread, 22.5's vs. 24.5's, Low Pro's vs. Tall Rubber?


Be more spacific?



American Trucker

 

All of the above, including tread composistion, tire height, inflation pressure, tread design, contact area, road surface and composition, temperature. Merely saying that any fuel savings is equal to the difference in contact area doesn't take many more important factors into consideration. You might want to read Michelin's technical reports on this...

 

okie dokie let me simplify this for ya! He asked about SS, not about all of the many things that affect your MPG's....I could care less about MPGs when ONE blowout WILL blow ALL of the money you saved on fuel and then some.....




American Trucker

 

One tire? Using for example an increase from 6 to 6.5 mpg and 125,000 miles driven per year at todays pump prices... say $4.00 per gallon yields a savings of $6410.26 per year. That's not chicken feed, and ONE tire certainly doesn't cost that much. Now I'm not including the cost of rims and mounting - so this is an upper limit. Its quite possible to get say 350,000 miles out of a set of tires, so that yields (over the assumed life of the tire) something like $17,948.73 in savings.

 

your looking at $400-$500ish for a rim + labor/road call. Plus if your an O/O which is the only one who should care about any of this, how long did you sit waiting for that rim and tire? did you have to give up a load?

And ya your right if the tire last that long and you actully get a .5mpg increase it'll save you allot of money. But like you did lets use worse case here. You buy 8 SS for your Truck and Trailer

$600-$900 PER TIRE
http://ssl.delti.com/cgi-bin/rshop....s=Ordern&typ=R-102660&ranzahl=4&nichtweiter=1

http://ssl.delti.com/cgi-bin/rshop....s=Ordern&typ=R-163540&ranzahl=4&nichtweiter=1

$400-$500 PER RIM

http://compare.ebay.com/like/170612...fe00c8a&itemid=170612937431&ff4=263602_309572

so your looking at: $8000-$11,200 +Mounting and Balanceing

How Long is it going to take to make that back?
How many tires are you going to blow out?
How many rims will you replace?
How many hours will you waste waiting for a Rim/Tire?
How many loads did you have to give up while waiting?
How many times where you late because of waiting?
How Much did it cost for the BigRig Wrecker to come pull you out of the ditch when you spun out on snow or ice?
How much is it going to cost when you WRECK your truck do to traction loss?
How much damage did all those blown tires do to your truck/trailer/freight?
etc...



see my point, fuel economy and longevity are great but there are allot of things that can throw all those saveings right out the window, SOME of which wouldnt happen had you had duals...


I've givein you two all the info you need, to make the decision of whether or not to get them, if and when your in the position to make that decision do what you want....Doesnt matter to me but dont be Blowing smoke up peoples XXXXX about how great they are without giving them ALL the facts.

And one last thing, if they where such an Obvious money saver and the best thing since adding a turbo to a diesel engine, why arent all the O/O's running out and buying them? Like allot are doing with trailer skirts/Air Tabs/Air Damns/Spoilers/Eco Flaps/Cab exstenders/Walestails, APU's, etc?????




American Trucker