Federal 595RS 235/40 R17 90W

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The Federal 595RS tire is a high performance tire that is designed for use on high performance vehicles. The tire has a unique tread pattern that helps to provide excellent traction and handling on both dry and wet roads. The tire is also designed to provide a comfortable ride and to minimize noise levels. This tire is designed to be used in dry and wet conditions on the road. It is not meant for off-road use.

What does 235/40R17 mean?


The tire width is 235mm.


The aspect ratio of the tire is 40. 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.

235/40R17 90W tire size

The width of 235/40R17 90W tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 235/40R17 90W tire size in inches as well as few additional metrics:

In inches In millimeters

Section Width

9.3″ 235mm

Sidewall height

3.7″ 94mm

Diameter / Height

24.4″ 620mm


76.7″ 1947mm

Rim Diameter



827 per mile 514 per kilometer

Rim Size for 235/40R17 90W Tires

Recommended rim sizes for 235/40R17 90W tire:

Diameter Width Range
17″ 8-9.5″

What does 90W mean?

The load index 90 means that the tire has been designed to support 1323 lbs or 600 kg.

The speed index W means that the tire has been designed to be used in speed up to 168 mph or 270 kph.


Federal 595RS is a high performance tire that offers great grip and handling. It is a popular choice among racing enthusiasts and has won many awards. The 595RS is a versatile tire that can be used on both dry and wet surfaces. It is also a very durable tire that can withstand a lot of abuse.

Tire Specification

Brand: Federal
Model: 595RS
Season: Summer
Size: 235/40 R17
Load Index: 90 — 600 kg | x4 - 2400 kg
Speed Index: W — 270 km\h
Car Type:Passenger
Road: City
XL / Extra Load: No
RunFlat technology: No
Commercial / Reinforced: No
EU Label
Fuel efficiency: D
Wet grip: B
Noise level: 67dB