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Sidewall

235/80R16

235 mm across the tread, a sidewall 80% of that — 188 mm — on a 16-inch rim. That puts the whole wheel at 30.8 inches tall.

188 mm sidewall782 mm · 30.8"
Sidewall
7.40"
188 mm
Overall
30.8"
782.4 mm
Circumference
96.8"
2.458 m
Revs per mile
655
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 6.5" and 8.5" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 225 mm across at the narrow end and 245 mm at the wide one. Written the way lift kits and wheel wells are, it is a 30.8×9.3R16 — tall by wide, in inches.

What goes wrong on this size

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

115 of them name what let go, and it is most often blowout. Goodyear is named more than any other brand.

What let goComplaints
blowout68
tread separation40
blister3
out of round3
puncture1
not stated6

Where the wheel is named, 56 of 106 were on the rear, and 50 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
225/85R1631.1" +0.8 %+3.3 mm60.5 mphside by side
255/75R1631.1" +0.8 %+3.3 mm60.5 mphside by side
245/75R1630.5" -1.1 %-4.3 mm59.3 mphside by side
215/85R1630.4" -1.3 %-5.3 mm59.2 mphside by side
225/80R1630.2" -2.0 %-8.0 mm58.8 mphside by side
245/80R1631.4" +2.0 %+8.0 mm61.2 mphside by side
255/70R1630.1" -2.4 %-9.5 mm58.5 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.


235/85R15200 mm sidewall — 6% more
235/75R17176 mm sidewall — 6% less
205/85R17174 mm sidewall — 7% less
265/75R15199 mm sidewall — 6% more
265/65R17172 mm sidewall — 8% less
255/70R17179 mm sidewall — 5% 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
225/85R1630.2 mph50.4 mph70.6 mph10,083
255/75R1630.2 mph50.4 mph70.6 mph10,083
245/75R1629.7 mph49.5 mph69.2 mph9,891
215/85R1629.6 mph49.3 mph69.1 mph9,866
225/80R1629.4 mph49.0 mph68.6 mph9,796