# 2018 Lexus LC500h Tire Size

Your Lexus was manufactured with different tire sizes. To determine the best tire size for your specific 2018 Lexus LC500h, we first need to determine your rim size. Please review the information below.

## How to Determine Rim Size

Check your existing tires. Your Lexus LC500h's rim size is the number to the right of the R. In the example pictured here, the tire size fits 16-inch rims.

## Rim Size Selection

Now that you know your rim size, make a selection below to filter your results.

## 20-Inch Rims

### 2018 Lexus LC500h

The original tire size for your 2018 Lexus LC500h is listed below. Tap on the box to view a color-coded explanation of your Lexus LC500h's' tire size.

## 245/45RF20 99(Front)

### Simplified Size: 245-45-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Lexus LC500h is **245/45RF20 99Y (Front)**. A color-coded explanation of the 2018 Lexus LC500h's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. |

45 | This number means that your tire has an aspect ratio of 45%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 45% of the width. In this case, the sidewall height works out to be 110 millimeters. |

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. |

20 | The tire size was designed to fit rims or wheels that are 20 inches in diameter. |

99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |

This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 275/40RF20 102(Rear)

### Simplified Size: 275-40-20

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Lexus LC500h is **245/45RF20 99Y (Front)**. A color-coded explanation of the 2018 Lexus LC500h's tire size is shown below.

275 | This number indicates that your tire has a width of 275 millimeters. |

40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 110 millimeters. |

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. |

20 | The tire size was designed to fit rims or wheels that are 20 inches in diameter. |

102 | This tire has a load index of 102, which means it's capable of carrying a load of 1870 pounds (850 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |

This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

## 21-Inch Rims

### 2018 Lexus LC500h

The original tire size for your 2018 Lexus LC500h is listed below. Tap on the box to view a color-coded explanation of your Lexus LC500h's' tire size.

Trim Options:

### (21 Inch Option)

## 245/40RF21 96(Front)

### Simplified Size: 245-40-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Lexus LC500h is **245/40RF21 96Y (Front)**. A color-coded explanation of the 2018 Lexus LC500h's tire size is shown below.

245 | This number indicates that your tire has a width of 245 millimeters. |

40 | This number means that your tire has an aspect ratio of 40%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 40% of the width. In this case, the sidewall height works out to be 98 millimeters. |

RF | The mark of RF indicates that the tire is reinforced. This means it can handle a higher inflation pressure than a standard tire, which increases its maximum load. |

21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. |

96 | This tire has a load index of 96, which means it's capable of carrying a load of 1562 pounds (710 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |

This tire has a speed rating of Y, which means 186 mph (300 km/h) is the maximum speed that can be sustained for 10 minutes. A higher speed becomes dangerous. |

Trim Options:

### (21 Inch Option)

## 275/35RF21 99(Rear)

### Simplified Size: 275-35-21

Simplified size is useful for shopping and buying tires.

The original tire size for your 2018 Lexus LC500h is **245/40RF21 96Y (Front)**. A color-coded explanation of the 2018 Lexus LC500h's tire size is shown below.

275 | This number indicates that your tire has a width of 275 millimeters. |

35 | This number means that your tire has an aspect ratio of 35%. In other words, your tire's sidewall height (from the edge of the rim to the tire's tread) is 35% of the width. In this case, the sidewall height works out to be 96 millimeters. |

RF | |

21 | The tire size was designed to fit rims or wheels that are 21 inches in diameter. |

99 | This tire has a load index of 99, which means it's capable of carrying a load of 1705 pounds (775 kg) or less. A higher number means the tire can carry more weight. A lower number means the opposite. |