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Sidewall

155/80R16

155 mm across the tread, a sidewall 80% of that — 124 mm — on a 16-inch rim. That puts the whole wheel at 25.8 inches tall.

124 mm sidewall654 mm · 25.8"
Sidewall
4.88"
124 mm
Overall
25.8"
654.4 mm
Circumference
80.9"
2.056 m
Revs per mile
783
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 4" and 5.5" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 148 mm across at the narrow end and 163 mm at the wide one. Written the way lift kits and wheel wells are, it is a 25.8×6.1R16 — tall by wide, in inches.

What goes wrong on this size

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4 drivers have filed a complaint. 2 of them ended in a crash, hurting 2 people. Nobody died.

4 of them name what let go, and it is most often tread separation. Bridgestone is named more than any other brand.

What let goComplaints
tread separation2
blowout2

Where the wheel is named, 2 of 4 were on the front — the end that steers.

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
165/75R1625.7" -0.1 %-0.3 mm60.0 mphside by side
175/70R1625.6" -0.5 %-1.5 mm59.7 mphside by side
175/75R1626.3" +2.2 %+7.3 mm61.3 mphside by side
155/75R1625.2" -2.4 %-7.8 mm58.6 mphside by side
145/80R1625.1" -2.4 %-8.0 mm58.5 mphside by side
165/80R1626.4" +2.4 %+8.0 mm61.5 mphside by side
165/70R1625.1" -2.6 %-8.5 mm58.4 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.


185/60R17111 mm sidewall — 10% less
185/75R15139 mm sidewall — 12% more
175/65R17114 mm sidewall — 8% less
145/75R17109 mm sidewall — 12% less
155/70R17109 mm sidewall — 13% less
135/80R17108 mm sidewall — 13% less

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
165/75R1630.0 mph50.0 mph69.9 mph9,992
175/70R1629.9 mph49.8 mph69.7 mph9,954
175/75R1630.7 mph51.1 mph71.6 mph10,222
155/75R1629.3 mph48.8 mph68.3 mph9,763
145/80R1629.3 mph48.8 mph68.3 mph9,756