2014 Chevrolet Spark LT Tires | Goodyear Auto Service

2014 Chevrolet Spark LT Tire Size: 185/55R15

Tire Size	Tire Pressure (PSI)	Speed Rating	Load Index
Tire Size	185/55R15
Tire Pressure (PSI)	Front 40 Rear 40
Speed Rating	T 118 mph
Load Index	82 1047 lbs.

Understanding Tire Specs

Speed Rating

Tire speed rating tells you the maximum service speed for a tire. A speed rating isn't, however, a recommendation to exceed speed limits, and doesn't indicate how well a tire handles or corners.
We recommend that you choose new tires with a speed rating at least equal to your old tires. For example, if the recommended speed rating is a V, it's suggested that you replace it with a V, W, Y, or Z. If you mix tires with different speed ratings, be sure to observe the lowest speed rating.

Service description speed symbol

Maximum speed (MPH)

Size speed symbol

106

112

118

124

130

149

Above 149

ZR

(Without Service Description)

168

186

(Y)**

Above 186

* W- and Y-speed ratings are subcategories of the Z-speed rating.
** Per the TR&A 2007 yearbook, for tires having a maximum speed capability above 240 km/h (149 mph), a ZR may appear in the size designation. For tires having a maximum speed capacity above 300 km/h (186 mph), a ZR must appear in the size designation and a service description, including the Y speed symbol, must be included in brackets.

Load Index

Tire load index is an assigned number that corresponds to the maximum weight that a tire can support when properly inflated.
Most passenger-car tire load indexes range from 75 to 100, but some are higher. The chart shows how load indexes translate to weight.

Load Index	Load (lbs)
75	853
76	882
77	908
78	937
79	963
80	992
81	1019
82	1047
83	1074
84	1102
85	1135
86	1168
87	1201
88	1235

Load Index	Load (lbs)
89	1279
90	1323
91	1356
92	1389
93	1433
94	1477
95	1521
96	1565
97	1609
98	1653
99	1709
100	1764
101	1819
102	1874

Load Index	Load (lbs)
103	1929
104	1984
105	2039
106	2094
107	2149
108	2205
109	2271
110	2337
111	2403
112	2469
113	2535
114	2601
115	2679
116	2756

Load Index	Load (lbs)
117	2833
118	2910
119	2998
120	3087
121	3197
122	3307
123	3417
124	3527
125	3638
126	3748
127	3858
128	3968
129	4079
130	4190

Sidewall

Not all sidewalls are built the same. Check out the different types of sidewall styles that we offer below.

Black

A black sidewall with black lettering.

Whitewall

White bands on the sidewall vary in width.

Outlined Letters

Letters on the sidewall are outlined in white.

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Original Equipment Fitment

Original Equipment (OE) tires are tires that came equipped on a new vehicle at the time of purchase. These tires are selected by the vehicle manufacturer in order to help provide optimal performance based on the characteristics of the vehicle. Tire results flagged as "Original Equipment Fitment" signify that Goodyear is recognized as an original equipment manufacturer (OEM) supplier of the tires that came on your vehicle.