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Sidewall

225/70R19.5

225 mm across the tread, a sidewall 70% of that — 158 mm — on a 19.5-inch rim. That puts the whole wheel at 31.9 inches tall.

158 mm sidewall810 mm · 31.9"
Sidewall
6.20"
158 mm
Overall
31.9"
810.3 mm
Circumference
100.2"
2.546 m
Revs per mile
632
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 6" and 8.5" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 213 mm across at the narrow end and 238 mm at the wide one. Written the way lift kits and wheel wells are, it is a 31.9×8.9R19.5 — tall by wide, in inches.

What goes wrong on this size

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20 drivers have filed a complaint. 1 of them ended in a crash, and nobody was hurt. Nobody died.

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

What let goComplaints
blowout9
tread separation5
crack2
out of round1
not stated3

Where the wheel is named, 10 of 17 were on the front — the end that steers.

What fits instead

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Same 19.5-inch rim, height within 3%. Past that the speedometer starts lying and things begin to rub.


SizeHeightRide heightSpeedo reads 60, you doCompare
245/65R19.532.0" +0.4 %+1.8 mm60.3 mphside by side
225/65R19.531.0" -2.8 %-11.3 mm58.3 mphside by side
225/75R19.532.8" +2.8 %+11.3 mm61.7 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.


245/75R17.5184 mm sidewall — 17% more
225/80R17.5180 mm sidewall — 14% more
235/80R17.5188 mm sidewall — 19% more

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
245/65R19.530.1 mph50.2 mph70.3 mph10,043
225/65R19.529.2 mph48.6 mph68.1 mph9,722
225/75R19.530.8 mph51.4 mph71.9 mph10,278