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Sidewall

285/70R17

285 mm across the tread, a sidewall 70% of that — 200 mm — on a 17-inch rim. That puts the whole wheel at 32.7 inches tall.

200 mm sidewall831 mm · 32.7"
Sidewall
7.85"
200 mm
Overall
32.7"
830.8 mm
Circumference
102.8"
2.610 m
Revs per mile
617
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 8" and 10.5" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 273 mm across at the narrow end and 298 mm at the wide one. Written the way lift kits and wheel wells are, it is a 32.7×11.2R17 — tall by wide, in inches.

What goes wrong on this size

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

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

What let goComplaints
blowout2
out of round1
not stated1

Where the wheel is named, 2 of 3 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
265/75R1732.6" -0.2 %-0.8 mm59.9 mphside by side
305/65R1732.6" -0.3 %-1.3 mm59.8 mphside by side
275/75R1733.2" +1.6 %+6.8 mm61.0 mphside by side
275/70R1732.2" -1.7 %-7.0 mm59.0 mphside by side
295/70R1733.3" +1.7 %+7.0 mm61.0 mphside by side
295/65R1732.1" -1.9 %-7.8 mm58.9 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.


265/70R18186 mm sidewall — 7% less
285/65R18185 mm sidewall — 7% less
285/75R16214 mm sidewall — 7% more
315/60R18189 mm sidewall — 5% less
305/60R18183 mm sidewall — 8% less
255/75R18191 mm sidewall — 4% less

Tires graded in this size

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


TireTreadwearWet grip
BF Goodrich Trail-Terrain T/A660A
Big O Trail-Terrain T/A660A
Americus A/T540A
Thunderer R404540A

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
265/75R1729.9 mph49.9 mph69.9 mph9,982
305/65R1729.9 mph49.8 mph69.8 mph9,970
275/75R1730.5 mph50.8 mph71.1 mph10,162
275/70R1729.5 mph49.2 mph68.8 mph9,831
295/70R1730.5 mph50.8 mph71.2 mph10,169