2020 Volkswagen Jetta: the quick answer
The 2020 Volkswagen Jetta ships with 205/60R16 tires on the base trim — that's an
overall diameter of 25.7″. The 205 mm width and
60% sidewall ratio give you 123 mm of sidewall cushion between
the rim and the road.
Before you buy tires
Match the load index and speed rating from your
door-jamb placard — not just the size. If you're switching sizes, keep the overall
diameter within ~3% to avoid speedometer error and potential ABS/traction-control issues.
Factory fitment for the 2020 Volkswagen Jetta; verify against your door-jamb placard or owner's manual.