Larry&Donna-AK Posted October 28, 2015 Report Share Posted October 28, 2015 I've been seeing many Commercial Rigs with Super Singles. I know there is a weight savings but I would like to know if anyone has investigated the Pros & Cons for the RV Rigs. Link to comment Share on other sites More sharing options...
Dennis M Posted October 28, 2015 Report Share Posted October 28, 2015 A couple discussions: http://www.rvnetwork.com/index.php?showtopic=117770&hl=%2Bsuper+%2Bsingle#entry775792 http://www.rvnetwork.com/index.php?showtopic=111011&hl=%2Bsuper+%2Bsingle#entry697667 Link to comment Share on other sites More sharing options...
lappir Posted October 28, 2015 Report Share Posted October 28, 2015 Have a friend who has them on the back of his truck and hasn't had an issue. No plans to change as far as I know. Link to comment Share on other sites More sharing options...
Chuck Williams Posted October 28, 2015 Report Share Posted October 28, 2015 I've talked to several commercial drivers with super singles that don't like them. One driver got so upset talking about them I thought he was going to have a stroke. Some say they hydroplane easily with light loads and bob tailing. Link to comment Share on other sites More sharing options...
HERO Maker Posted October 29, 2015 Report Share Posted October 29, 2015 Have a friend who has them on the back of his truck and hasn't had an issue. No plans to change as far as I know. Rod, singled or tandem? Link to comment Share on other sites More sharing options...
On The Road Posted October 29, 2015 Report Share Posted October 29, 2015 I have run SS for over a year, not a problem. If you have a question I will try to answer. I run tire monitors and keep a good eye on the pressure. Link to comment Share on other sites More sharing options...
TreyandSusan Posted October 29, 2015 Report Share Posted October 29, 2015 Rocky Wide based tires should not be used on singled Trucks (pulling trailers) unless the truck is equipped with ESP or ESC (Electronic Stability Program/Control). Michelin XOne Service Manual Page 22 Link to comment Share on other sites More sharing options...
Bigtrailer Posted October 29, 2015 Report Share Posted October 29, 2015 Your screwed big time for several reasons. 1.) You blow a single your going to ruin the rim.......period. Now you get to buy a tire and rim. 2.) You can hobble in on the other tire on duals at least to get off the road. 3.) Any idea when one of those singles blow how much rubber is going to rip off your fenders, fuel tank, air lines, YOUR AIR BAGS! 4.)They do hydroplane in rain. You don't have enough weight like a semi to remain stable. 5.) Try to find a super single in Winnamuca, Payson, Quartzite, Van Horn, get the idea? Bigtrailer Link to comment Share on other sites More sharing options...
HERO Maker Posted October 29, 2015 Report Share Posted October 29, 2015 Rocky Wide based tires should not be used on singled Trucks (pulling trailers) unless the truck is equipped with ESP or ESC (Electronic Stability Program/Control). Michelin XOne Service Manual Page 22 Trey, that's why I was wondering what Rod's friend has. I would never consider wide based tires on a singled truck, even if Michelin said it was OK, for the main reason of leaving me stranded and not able to limp down the road. Link to comment Share on other sites More sharing options...
lappir Posted October 29, 2015 Report Share Posted October 29, 2015 Trey, that's why I was wondering what Rod's friend has. I would never consider wide based tires on a singled truck, even if Michelin said it was OK, for the main reason of leaving me stranded and not able to limp down the road. He is singled and has put a lot of miles on the truck. Pulls a heavy trailer has a heavy deck with motorcycle lift. Considering an Alaska trip in the near future. Not sure how many years before I met him 3 years ago he did the conversion from dual to super singles. I got him a spare tire from my brothers shop. He hadn't carried one for years. (Prep for Alaska trip). Not saying he is correct an expert of anything. Just sharing the information. I thought about it with my trailer and could still possibly do it. Two less tires to age out with lots of tread still on them. Rod Link to comment Share on other sites More sharing options...
WeBeFulltimers Posted October 29, 2015 Report Share Posted October 29, 2015 Your screwed big time for several reasons. 1.) You blow a single your going to ruin the rim.......period. Now you get to buy a tire and rim. 2.) You can hobble in on the other tire on duals at least to get off the road. 3.) Any idea when one of those singles blow how much rubber is going to rip off your fenders, fuel tank, air lines, YOUR AIR BAGS! 4.)They do hydroplane in rain. You don't have enough weight like a semi to remain stable. 5.) Try to find a super single in Winnamuca, Payson, Quartzite, Van Horn, get the idea? Bigtrailer This retired trucker can agree with all this except #1. True, you COULD ruin the rim but not every time. I probably had a problem with a blown SS about 4 times and NEVER ruined the rim. Can't agree more with #5! I sat on an exit ramp once going into Atlanta (Marietta) with a blown SS waiting for the roadside service for 7 hours. No SS found in the area to install for me. Who would have thought one would not be available in Atlanta of all places? My terminal manager wound up getting one from our shop in Chattanooga and bringing it down for the tire guy to install ! Link to comment Share on other sites More sharing options...
SIBERNUT Posted October 29, 2015 Report Share Posted October 29, 2015 Agree with most of above. But if you are broke on the side of the road, it's going to be open season on your wallet, and no bag limit. Link to comment Share on other sites More sharing options...
NoDirectionHome Posted October 29, 2015 Report Share Posted October 29, 2015 Sounds like most of you better start running dual steers for fear of ... anything ever going wrong. Seriously, anecdotal stories from guys that run 100K miles/yr compared to the number of SS on tractors and trailers is statistically insignificant. How many miles do any of us run with our greatly under-loaded HDT's? Link to comment Share on other sites More sharing options...
Big5er Posted October 29, 2015 Report Share Posted October 29, 2015 But the truth about trying to find one, roadside, would be enough for me. I'm singled so I needn't worry, but they are a rare tire to find. Every roadside guy has a 22.5 for my truck, drive or steer axle, but you will get bent over trying to find an SS roadside...period. And all for the "cool" factor? Link to comment Share on other sites More sharing options...
noteven Posted October 29, 2015 Report Share Posted October 29, 2015 It's the interweb truth you need a dually to pull a fiver. And besides you can go get a tire just about anywheres with your bmzero modular lazer cut spare HDT tire carrier (BMZMLCSCHDTTC) on the back of the smart and change 'er right there: https://www.youtube.com/watch?v=CMvzPeBkvGk Link to comment Share on other sites More sharing options...
Brad & Jacolyn Posted October 29, 2015 Report Share Posted October 29, 2015 Speaking for myself only. I'm a full timer and I want more than one tire on each side because that is my house back there and a blow out could put my house in the ditch and wreak everything. Just my opinion. Brad Link to comment Share on other sites More sharing options...
Jack Mayer Posted October 29, 2015 Report Share Posted October 29, 2015 I don't think singles on the single axle rear are a good idea even if you have stability control. To me that seems kinda obvious. But I suppose that technically they could be OK. My bigger issue on a singled tractor is availability and ability to get off the road - as others have said. As cool as they look, I'll stick to duals. If I bought a truck with singles and left it tandem I might run them for awhile but I'd switch to duals at some point in time. JMO. Link to comment Share on other sites More sharing options...
whatsnext Posted October 29, 2015 Report Share Posted October 29, 2015 We looked at wide based tires but Volvo & Michelin discourage it on singled rear's unless ESC equipped and even then there is concern on the "rapid loss of pressure" condition. Also, another reason we went with standard dual tires on our singled rear is that by the time you slap a Smart bed on the back, the SS tires are kind of hidden in the wheel well. Loses the "cool factor". Link to comment Share on other sites More sharing options...
G&K Posted October 29, 2015 Report Share Posted October 29, 2015 My understanding is there are two axle widths. The wider one is specifically for SS, but its too wide to run duals. The narrower one can run SS but you end up with a narrower track. But you can also run duals. I read that most fleets with SS are staying with the narrow axle so they can go back to duals if necessary. But you lose a lot of the 'cool' appearance with the narrow axle as it is tucked more under the bed. Geo Link to comment Share on other sites More sharing options...
NoDirectionHome Posted October 29, 2015 Report Share Posted October 29, 2015 My understanding is there are two axle widths 3 actually. Meritor has what they call DualTrac that is built specifically to accept either. Link to comment Share on other sites More sharing options...
G&K Posted October 29, 2015 Report Share Posted October 29, 2015 Cool. http://meritor.com/customer/northamerica/newsletter/StandardEquipment_01-2011.pdf Geo Link to comment Share on other sites More sharing options...
VegasFlyer Posted October 31, 2015 Report Share Posted October 31, 2015 While there are a lot of benefits to Super Singles, there are a lot of negatives, as have been pointed out. The majority of the trucks you see running SS tires are fleet trucks with a fairly good support system if they get a flat. It is not by coincidence that with a large number of other non-super single over the road trucks, you will see that they usually carry an unmourned all position tire that can literally go on any position, either at a tire shop, or the side of the road if a steer tire blows. Link to comment Share on other sites More sharing options...
jmdkw Posted November 2, 2015 Report Share Posted November 2, 2015 About axle width there is also 2different size of tires on as and a 2degree offset wheel and a 0 degree offset wheel if you run the 445 50 22.5 I believe you can substitute the lp22.5dual wheel set up if in a big bind Link to comment Share on other sites More sharing options...
NoDirectionHome Posted November 2, 2015 Report Share Posted November 2, 2015 2degree offset wheel and a 0 degree offset wheel I'm sure you mean 2" and 0". Just clarifying. The 2" offset give full width on a standard dual wheel axle but most manufacturers don't approve as the outer wheel bearing is overloaded. The Meritor axle takes care of that by averaging the width of the two axles and having a larger outer bearing Link to comment Share on other sites More sharing options...
beyerjf Posted November 4, 2015 Report Share Posted November 4, 2015 Another full time trucker weighing in. I agree all with all the negatives already presented. There are 2 applications where super singles are indicated. 1. Weight savings in applications (tanker hauling repeat identical loads) where the aggregate weight savings translates into more gallons hauled per load over time to make a slight positive difference in fleet efficiency ($). 2. Fuel efficiency (2-3% avg)increase distributed over millions of miles traveled to justify the offset in increased costs and agravation. You simply cannot justify the use of SS tires in the HDT RV arena on a cost or efficiency basis. If you think they are cool, do it, but you will pay for it. Link to comment Share on other sites More sharing options...
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