245/35R21
Standard MetricFactory Specs, Physical Dimensions & Compatible Vehicle Applications
The 245/35R21 tire size features an overall diameter of 27.75 inches, a section width of 9.6 inches (245mm), and rotates 727 times per mile. It is a standard factory tire fitment on 55+ vehicle models including BMW Alpina.
Physical Dimensions & Specs
Overall Diameter
27.75"
704.8 mmSection Width
245 mm
9.65" wideSidewall Height
3.38"
85.9 mm (35% aspect)Revolutions / Mile
727
Circumference: 87.19"Rim Diameter
21"
Wheel sizeRecommended Rim Width
6.1" - 8.6"
Optimal rim width rangeWhere to Buy & Install 245/35R21 Tires
Looking for 245/35R21 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 245/35R21 against any proposed tire size below:
Visual Tire & Wheel Comparison
Speedometer Variance
| Indicated | Actual Speed | Diff |
|---|---|---|
| 20 mph | 21.3 mph | +1.3 mph |
| 30 mph | 32.0 mph | +2.0 mph |
| 45 mph | 48.0 mph | +3.0 mph |
| 60 mph | 63.9 mph | +3.9 mph |
| 75 mph | 79.9 mph | +4.9 mph |
| 90 mph | 95.9 mph | +5.9 mph |
Fender & Suspension Clearance
Flush fitment. Extends 17.7mm outwards. Check wheel arch clearance under full suspension compression.
Vehicles That Fit 245/35R21 (55+ Models)
Factory standard and optional vehicle fitments utilizing 245/35R21 tires: