235/50R21
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 235/50R21 tire size features an overall diameter of 30.25 inches, a section width of 9.3 inches (235mm), and rotates 667 times per mile. It is a standard factory tire fitment on 31+ vehicle models including Lexus RX 350.
Physical Dimensions & Specs
Overall Diameter
30.25"
768.3 mmSection Width
235 mm
9.25" wideSidewall Height
4.63"
117.6 mm (50% aspect)Revolutions / Mile
667
Circumference: 95.04"Rim Diameter
21"
Wheel sizeRecommended Rim Width
5.9" - 8.2"
Optimal rim width rangeWhere to Buy & Install 235/50R21 Tires
Looking for 235/50R21 tires? Skip hauling tires in your car—choose direct delivery to a local certified shop or doorstep delivery:
Tire Rack
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Amazon Automotive
Fast doorstep shipping for DIYers or bringing to your own shop.
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Speedometer & Alternate Size Calculator
Testing an alternate size for your vehicle? Compare 235/50R21 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 19.6 mph | -0.4 mph |
| 30 mph | 29.3 mph | -0.7 mph |
| 45 mph | 44.0 mph | -1.0 mph |
| 60 mph | 58.7 mph | -1.3 mph |
| 75 mph | 73.3 mph | -1.7 mph |
| 90 mph | 88.0 mph | -2.0 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 235/50R21 (31+ Models)
Factory standard and optional vehicle fitments utilizing 235/50R21 tires: