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Sidewall

235/75R17

235 mm across the tread, a sidewall 75% of that — 176 mm — on a 17-inch rim. That puts the whole wheel at 30.9 inches tall.

176 mm sidewall784 mm · 30.9"
Sidewall
6.94"
176 mm
Overall
30.9"
784.3 mm
Circumference
97.0"
2.464 m
Revs per mile
653
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 30.9×9.3R17 — tall by wide, in inches.

What goes wrong on this size

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

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

What let goComplaints
blowout4
road hazard1
not stated3

Where the wheel is named, 5 of 7 were on the front — the end that steers.

What fits instead

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Same 17-inch rim, height within 3%. Past that the speedometer starts lying and things begin to rub.


SizeHeightRide heightSpeedo reads 60, you doCompare
255/70R1731.1" +0.6 %+2.3 mm60.3 mphside by side
225/80R1731.2" +1.0 %+3.8 mm60.6 mphside by side
215/80R1730.5" -1.1 %-4.3 mm59.3 mphside by side
245/70R1730.5" -1.2 %-4.8 mm59.3 mphside by side
215/85R1731.4" +1.7 %+6.5 mm61.0 mphside by side
225/75R1730.3" -1.9 %-7.5 mm58.9 mphside by side
245/75R1731.5" +1.9 %+7.5 mm61.1 mphside by side
255/65R1730.1" -2.7 %-10.5 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.


205/80R18164 mm sidewall — 7% less
235/80R16188 mm sidewall — 7% more
235/70R18165 mm sidewall — 7% less
255/65R18166 mm sidewall — 6% less
215/75R18161 mm sidewall — 9% less
225/85R16191 mm sidewall — 9% more

Tires graded in this size

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


TireTreadwearWet grip
BLACKHAWK HISCEND-H HT01700A
Hankook DynaPro AT460B

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
255/70R1730.2 mph50.3 mph70.4 mph10,057
225/80R1730.3 mph50.5 mph70.7 mph10,096
215/80R1729.7 mph49.5 mph69.2 mph9,892
245/70R1729.6 mph49.4 mph69.2 mph9,879
215/85R1730.5 mph50.8 mph71.2 mph10,166