My question is:
are new class 8 trucks converting from the standard dually rear wheels to the new super single rear wheels...? Is there any specific industry that prefers the super single vs the dually...? I just saw a concrete truck, the one with the big barrel on the back with a rear two axle using super single rear wheels. Are new trucks being sold with dually wheels or super singles...? Is this the new trend? Anyone know the relationship between what percentage of each are being sold...? |
To the best of my knowledge, you cannot get a new truck tractor with super singles. Late in 2007 I had a customer attempt to purchase a new cab and chassis from PACCAR (Kenworth & Peterbilt). They cited a maintenance issue with the single rear tires. However, reports show that the super single tires increase fuel mileage (3%), but I see this tire gaining little ground in the near future with manufacturers. The truck conversion market is tiny compared to the commercial truck market and until the commercial industry sees real benefit to replace duals, I don't see fleets and hence manufacturers moving that way. Fuel mileage is not improved enough to offset the cost of not being able to retread these tires more than once (there is increased strain on the super singles that prohibit retreading more than once.) I think we'll see faster change in commercial trailers which will likely force the truck market.
Steve |
I contacted Bridgestone/Firestone back in September regarding retrofitting my single-axle rig with super singles. Here's their reply:
Quote:
And, FWIW, super singles were a factory option on dual axle Freightliner trucks when I ordered my rig in 2005. However, they would not install super singles at the factory on a single-axle truck. |
They are popular with trucking purposes that deal with heavy loads where they pick up cargo capacity due to the lower weight of the super singles. In SoCal, you frequently see them on liquid tanker trucks and garbage hauling rigs.
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...TWO [fatties]TIRES AND[steel] RIMS IS $1700+... <IS THERE A SAVINGS?>...two tires[ 11X22.5's ]mounted on re-done rims is $570 out the door.....or $1140 for the whole axle[4tires and rims-Generals]....geofkaye
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