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Continental ContiEcoContact EP 175/55 R15 77T

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The Continental ContiEcoContact EP is an environmentally friendly tire that offers excellent fuel efficiency and grip in both wet and dry conditions. The ContiEcoContact EP features Continental’s unique EcoPlus Technology, which reduces rolling resistance and helps to improve fuel economy by up to 3.5%. The ContiEcoContact EP also features an advanced tread compound that improves grip and wear resistance, while reducing road noise for a quieter ride. The Continental ContiEcoContact EP is designed for use in a variety of conditions, including wet weather. The tire has a special tread pattern that helps to provide good traction in wet conditions, and it also has a special compound that helps to improve fuel economy.

What does 175/55R15 mean?


The tire width is 175mm.


The aspect ratio of the tire is 55. Aspect ratio is the relative height of tire sidewall. The number refers to the percentage of sidewall height in relation to tire width.


The letter in the middle refers to tire construction. Practically all tires sold for cars are radials.

Sometimes you also see tires with RF or ZR. RF indicates the tire is run flat, whereas ZR means the tire has speed rating higher than V. These tires are also radials, as the R indicates.


Rim diameter for the tire.

175/55R15 77T tire size

The width of 175/55R15 77T tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 175/55R15 77T tire size in inches as well as few additional metrics:

In inches In millimeters

Section Width

6.9″ 175mm

Sidewall height

3.8″ 96mm

Diameter / Height

22.6″ 574mm


70.9″ 1802mm

Rim Diameter



893 per mile 555 per kilometer

Rim Size for 175/55R15 77T Tires

Recommended rim sizes for 175/55R15 77T tire:

Diameter Width Range
15″ 5-6″

What does 77T mean?

The load index 77 means that the tire has been designed to support 908 lbs or 412 kg.

The speed index T means that the tire has been designed to be used in speed up to 118 mph or 190 kph.

This size tire is usually used on smaller cars, such as a Honda Civic.


Continental is a leading tire manufacturer with over 100 years of experience. The ContiEcoContact EP is their eco-friendly tire designed to provide excellent fuel economy and long tread life. This tire is a great choice for drivers who are looking to save money on fuel and reduce their impact on the environment.

Tire Specification

Brand: Continental
Model: ContiEcoContact EP
Season: Summer
Size: 175/55 R15
Load Index: 77 — 412 kg | x4 - 1648 kg
Speed Index: T — 190 km\h
Car Type:Passenger
Road: City
XL / Extra Load: No
RunFlat technology: No
Commercial / Reinforced: No
EU Label
Fuel efficiency: E
Wet grip: B
Noise level: 70dB