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Vehicle Info NeededHOOSIERPART NUMBER: 522-46811R7
Sports Car Road Race Radial Tire P225/40R18 R7
$49200
Ships on Sep 04, 2026
Lowest Price Guarantee18'' Wheel Diameter
- Sports Car Road Race Radial Tire
- P225/40R18 R7
Tire Overall Diameter: 24.7' Average Roll Out/
Circumference:77.5' Tire Tread Width: 8.8' Tire Section Width: 9.6' Wheel Diameter: 18' Required
Wheel Width:7.5' - 8.0' - 9.0' Load/Speed Rating: 83W
Note: Bold type indicates measuring rim.
"Tires Designed for Champions"
The Hoosier Sports Car Road Race and AutoCross Radial Tires are designed specifically for sports car racing classes that require a DOT (Department of Transportation) legal radial tire for competition use. The Road Race specific R7 and Autocross specific A7 compounds have been developed to increase consistency and wear without sacrificing performance. An increase in performance can be expected over competitive brand and previous versions of Hoosier racing tire compounds when these tires are broken in and used as specified.Part TypeTire
Product LineHoosier Sports Car Road Race and AutoCross Radial Tires
BrandHOOSIER
Part CategoryPerformance Parts
Speed RatingZR
Traction RatingN/A
Max Load Single (Lbs.)N/A
Load RangeN/A
Section Width225
Tube RequiredNo
DirectionalNo
Dot-ApprovedNo
Wheel Diameter18 in (457.2 mm)
Utqg Tread Wear RatingN/A
Tire Size225/40-18
Temperature RatingN/A
Minimum Recommended Wheel Width7.5 in (190.5 mm)
Tread Width8.8 in (223.5 mm)
QuantitySold individually
Tire Diameter24.7 in (627.4 mm)
Sidewall StyleBlackwall
Minimum Tire Diameter24 in (609.6 mm)
DirectionalNo
Aspect Ratio40
Asymmetrical Tread PatternNo
Tire ConstructionRadial
Part FitmentUniversal
Tread Depth (In.)4.5/32
Maximum Tire Diameter24.99 in (634.746 mm)
Maximum Recommended Wheel Width9 in (228.6 mm)
Vendor Part Number46811R7
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
