Piston Slap: A Primer on Wheel Offset and Backspacing

Long-time TTAC Commentator 86er writes:

Hi Sajeev,

Could Piston Slap furnish me with a be-all/end-all explanation about wheel offsets? The more I try to read up on it on the web, the more confused I get. I’m pretty clear that RWD (at least traditionally) went with the low-offset while the FWD revolution made high positive offsets the industry standard, at least in passenger cars.

A few years back, I had purchased a set of winter tires on rims for my trusty ol’ 92 Vic and later after research found out that the rims were medium-offset that went on a 4×4 Ranger of similar years. I’ve heard that putting on a different-offset wheel can hurt steering/suspension parts like ball joints, but I’ve never seen it in black-and-white, so to speak.

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  • Alan I read the front wheels are driven by the engine and the rear wheels by electric in the hybrid. I also find it odd it isn't offered as the 2.4 hybrid with 250kw on tap.
  • KOKing That base hybrid system must be something other than the normal Toyota Hybrid Synergy Drive, since that uses the two electric motors as the ('CVT') transmission without a separate transmission of any kind.
  • Analoggrotto Too much of the exterior is shared with the Grand Highlander. Toyota/Lexus is clearly over extended here as this was rushed in direct response to the Kia Telluride which has decimated RX sales. Lexus was not such a major offender of just changing the front and rear end caps on a lesser Toyota model (this worked for LX / Land Cruiser as the latter is already expensive) but for such a mass market vehicle, buyers will notice and may just go to Toyota (or Kia) for their big SUV.
  • Crtfour I'm a BOF SUV fan. In my opinion it's certainly not a looker (but what is these days). But it does look the part and should be great off road. Plus kudos to Toyota for retaining actual shift levers. So I give it a thumbs up.