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Sidewall

175/80R16

175 mm across the tread, a sidewall 80% of that — 140 mm — on a 16-inch rim. That puts the whole wheel at 27.0 inches tall.

140 mm sidewall686 mm · 27.0"
Sidewall
5.51"
140 mm
Overall
27.0"
686.4 mm
Circumference
84.9"
2.156 m
Revs per mile
746
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 5" and 6" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 170 mm across at the narrow end and 180 mm at the wide one. Written the way lift kits and wheel wells are, it is a 27.0×6.9R16 — tall by wide, in inches.

What goes wrong on this size

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2 drivers have filed a complaint. 0 of them ended in a crash, and nobody was hurt. Nobody died.

2 of them name what let go, and it is most often crack. Metzler is named more than any other brand.

What let goComplaints
crack2

Where the wheel is named, 2 of 2 were on the rear, and 0 on the front.

What fits instead

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Same 16-inch rim, height within 3%. Past that the speedometer starts lying and things begin to rub.


SizeHeightRide heightSpeedo reads 60, you doCompare
165/85R1627.0" +0.1 %+0.3 mm60.0 mphside by side
185/75R1626.9" -0.4 %-1.3 mm59.8 mphside by side
195/70R1626.7" -1.0 %-3.5 mm59.4 mphside by side
195/75R1627.5" +1.8 %+6.3 mm61.1 mphside by side
165/80R1626.4" -2.3 %-8.0 mm58.6 mphside by side
185/80R1627.7" +2.3 %+8.0 mm61.4 mphside by side
175/75R1626.3" -2.5 %-8.8 mm58.5 mphside by side
175/85R1627.7" +2.5 %+8.8 mm61.5 mphside by side

Same height, different rim

Bigger rim, same overall height. Sharper steering, harsher ride, and far less rubber between your wheel and the next pothole.


195/65R17127 mm sidewall — 9% less
205/75R15154 mm sidewall — 10% more
185/70R17130 mm sidewall — 8% less
155/80R17124 mm sidewall — 11% less
195/80R15156 mm sidewall — 11% more
175/85R15149 mm sidewall — 6% more

Tires graded in this size

Longest-lasting tread first. The grade is set by the maker and checked by regulators.


TireTreadwearWet grip
Dunlop GRANDTREK PT5 (S and T rating)500B

If you fit something taller

A taller tire covers more ground per turn, so the needle reads low and the odometer counts short. Over ten thousand miles on the dial, the last column is what you really drove.


Fitted insteadReads 30Reads 50Reads 70Real miles per 10,000 shown
165/85R1630.0 mph50.0 mph70.1 mph10,007
185/75R1629.9 mph49.8 mph69.7 mph9,964
195/70R1629.7 mph49.5 mph69.3 mph9,898
195/75R1630.5 mph50.9 mph71.3 mph10,182
165/80R1629.3 mph48.8 mph68.4 mph9,767