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Sidewall

185/60R15

185 mm across the tread, a sidewall 60% of that — 111 mm — on a 15-inch rim. That puts the whole wheel at 23.7 inches tall.

111 mm sidewall603 mm · 23.7"
Sidewall
4.37"
111 mm
Overall
23.7"
603.0 mm
Circumference
74.6"
1.894 m
Revs per mile
850
per minute at 60 mph

What it needs to sit on

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It mounts on a rim between 5" and 6.5" wide, and the tread follows the rim: roughly 5 mm of section width for every half-inch, so about 178 mm across at the narrow end and 193 mm at the wide one. Written the way lift kits and wheel wells are, it is a 23.7×7.3R15 — tall by wide, in inches.

What goes wrong on this size

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22 drivers have filed a complaint. 1 of them ended in a crash, hurting 1 person. Nobody died.

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

What let goComplaints
blowout6
tread separation4
road hazard4
crack2
out of round2
blister2
not stated2

Where the wheel is named, 13 of 20 were on the front — the end that steers.

What fits instead

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Same 15-inch rim, height within 3%. Past that the speedometer starts lying and things begin to rub.


SizeHeightRide heightSpeedo reads 60, you doCompare
205/55R1523.9" +0.6 %+1.8 mm60.3 mphside by side
175/65R1524.0" +0.9 %+2.8 mm60.5 mphside by side
165/65R1523.4" -1.2 %-3.8 mm59.3 mphside by side
195/55R1523.4" -1.2 %-3.8 mm59.3 mphside by side
165/70R1524.1" +1.5 %+4.5 mm60.9 mphside by side
175/60R1523.3" -2.0 %-6.0 mm58.8 mphside by side
195/60R1524.2" +2.0 %+6.0 mm61.2 mphside by side
205/50R1523.1" -2.8 %-8.5 mm58.3 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.


165/75R14124 mm sidewall — 11% more
155/80R14124 mm sidewall — 12% more
165/60R1699 mm sidewall — 11% less
205/60R14123 mm sidewall — 11% more
195/50R1698 mm sidewall — 12% less
175/70R14123 mm sidewall — 10% more

Tires graded in this size

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


TireTreadwearWet grip
Bridgestone ECOPIA EP150880A
Prometer AVISTA700A
Yokohama AVID TRZ700A
CERTIFIED AllTrek560A
Firestone FR710560A
CONTINENTAL ProContact TX540A
Americus Touring Plus500A
Goodride SP06500A
Sumitomo Mach 1 R201500A
Telstar Mach 4 R302500A
Bridgestone TURANZA ER300 (OE)480AA
Neutral CLASSE PREMIERE460A

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
205/55R1530.2 mph50.3 mph70.4 mph10,058
175/65R1530.3 mph50.5 mph70.6 mph10,091
165/65R1529.6 mph49.4 mph69.1 mph9,876
195/55R1529.6 mph49.4 mph69.1 mph9,876
165/70R1530.4 mph50.7 mph71.0 mph10,149