Tridrive but still allowed 63,500 KG? What gives?

Better traction on mountain bush roads.

 

Mobility is the big thing in the bush. In the mountain areas you need to have a short combination because there isn't much room to turn around. Can't get much shorter than a tridrive with a tridem pole trailer or quad wagon loaded up on the truck. Gotta keep in mind loggers get paid by weight and you'd have a hard time making money with a tandem and pole trailer simply because you can't pack that kind of weight on a tandem without sacrificing mobility by going to b trains or a super b.

On the plus side, not only better traction with a tridrive but by being able to load a single trailer onto the truck reduces trailer tire and brake wear, improves ride quality when empty and keeps weight on the drives for improved traction.

 

Traction both up and down the hill. With the move to short logs by more mills the truckers can use either b trains or hay racks or a tridrive with a wagon, in really steep ground dragging a trailer up the hill simply does not work.

 

I like Tacos

 

RTAC weight limits, regardless of axle configuration, AFAIK remain at 63,500kg unless you are permitted over.

 

My guess is they load the scheiss out of them while off road, and so as to not void any warranty... while still able to run on road at 63,500kg...

 

Compensated for only having a 4 axle trailer. This here in Ontario

 

Arrow has a permit to run over 63,500 with tridrives pulling btrain coal wagons.