Single Rear Wheel vs Dually - Whats the Best for You

blt2ski wrote:

Lantley wrote:

blt2ski wrote:
Assuming both the single and the dual axeled rig have the same GAWR, assume 10,000 lbs,

same overall width of 8'

,the single axel will weigh upwards of 200 lbs less than the dual rig. a semi with a 20K axle will be 300-400 lbs less with super singles. As such, singles will have more payload potential than a dually. Being as they weigh less, less HP/torque is needed to get the tires moving, along with staying moving at a given speed, so better MPG should be expected and achieved. Assuming these specs, the single tired rig is the better option.....


Marty

1st paragraph scenario DRW truck will still have better braking and more stability. The axle rating is not the determining factor when it comes to comparing towing performance between the 2 trucks.
Physics (wider stance) still plays a factor.

I stated overall width would be the same! BOTH would have the same brakes, as they are both rated the same. Having diven rigs with the same dual vs single axel with the same everything, reality, no difference in handling, and the extra payload is there for the single rig, as the tires and rims weigh overall less on a single, than a dual rig.

In the video, obviously the rig that is shorter and narrower will win the driving thru a car wash, drive thru window etc. Shorter in height is also a big factor getting thru some drive thrus too.

Again, assuming the only difference between two rigs, is a single vs dual tires, the single is the better option. Hence why one is seeing many more tractor trailer rigs with singles vs dual setups. tare wieght savings, better traction, better braking, better mpgs etc. If we pickup owners could get the same wide width stance with a single as a dual, then yes, the dually is better in some standpoints.

Marty