28 Wheels Alloy or Steel; that is the question?
Weight is a hindrance on a 4WD. Wheels form a very important part of the GVM (Gross Vehicle Mass) of a 4WD and shouldn’t be overlooked. On Toyota’s 70 series range split-rims have always been a feature, supposedly so the operator can perform quick tyre dismounts in the bush. That wheel assembly really should be consigned to the scrap heap of history as it’s heavy, has five separate components (locking ring, rim, gaiter, tube, tyre) and because mud, moisture and grit can sneak into the wheel, the supposed advantages of quick disassembly are lost with a rusted-on locking ring and a tube chafed beyond repair. For most of us an alloy wheel is a much better bet. Being aluminium its lighter and it’s that weight that makes such a big difference in the handling department. Un-sprung suspension mass causes all sorts of problems on a 4WD. It can contribute to the potential for a rollover, causes suspension overheating and premature failure, and increases axle tramp and loss of traction. Heavy steel wheels do all of that, whereas alloy reduces the worst excesses of troublesome suspension mass.