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Michelin Pilot Sport 4 SUV 285/40 R21 109Y XL

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The Michelin Pilot Sport 4 SUV tire is a high performance tire that is designed for use on SUVs. The tire has a unique tread pattern that is designed to provide excellent traction and handling on all types of surfaces, including wet and dry roads. The tire also features a reinforced sidewall that is designed to resist punctures and provide enhanced durability. The Michelin Pilot Sport 4 SUV is designed for use in dry and wet conditions.

What does 285/40R21 mean?

285

The tire width is 285mm.

40

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.

R

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.

21

Rim diameter for the tire.

285/40R21 109Y tire size

The width of 285/40R21 109Y tire is stated in millimeters and sidewall height in percentages. In this table you’ll find out the 285/40R21 109Y tire size in inches as well as few additional metrics:

In inches In millimeters

Section Width

11.2″ 285mm

Sidewall height

4.5″ 114mm

Diameter / Height

30.0″ 761mm

Circumference

94.2″ 2392mm

Rim Diameter

21″

Revolutions

673 per mile 418 per kilometer

Rim Size for 285/40R21 109Y Tires

Recommended rim sizes for 285/40R21 109Y tire:

Diameter Width Range
21″ 9.5-11″

What does 109Y mean?

The load index 109 means that the tire has been designed to support 2271 lbs or 1030 kg.

The speed index Y means that the tire has been designed to be used in speed up to 186 mph or 300 kph.

This size tire is usually used on high-performance vehicles.

AboutMichelin

Michelin is a French tire company that was founded in 1889. The company is known for its premium tires that offer good grip, durability, and comfort. The Michelin Pilot Sport 4 SUV is a high-performance tire that is designed for SUVs. The tire has a tread pattern that is optimized for wet and dry traction. The Pilot Sport 4 SUV also has a reinforced sidewall that provides good handling and stability.

Tire Specification

Basic
SKU:
Brand: Michelin
Model: Pilot Sport 4 SUV
Season: Summer
Size: 285/40 R21
Load Index: 109 — 1030 kg | x4 - 4120 kg
Speed Index: Y — 300 km\h
Application
Car Type:SUV
Road: On/Off road
Technologies
XL / Extra Load: Yes
RunFlat technology: No
Commercial / Reinforced: No
Additional
Year: 2019
EU Label
Fuel efficiency: C
Wet grip: A
Noise level: 74dB

Delivery

Warranty