Tire and wheel fitment
Can You Run a Square Tire Setup on Staggered Rims?
Learn when the same tire size can run on staggered front and rear rims. Covers sidewall markings, approved rim width ranges, diameter and circumference calculations, clearance and load checks.
Staggered Tire Setup Lifespan: Wear, Rotation Limits and What the Sidewall Numbers Mean
Learn to read staggered tire sidewall markings, calculate size and circumference differences, and see why staggered tires wear unevenly and can't be fully rotated.
Motorcycle Inner Tube Size Conversion Chart: Reading Tire Markings and Matching the Right Tube
How to read motorcycle tire sidewall numbers, convert inch and metric sizes, match an inner tube's size range and valve, and calculate tire diameter differences.
Tire Size Change Regulations and Vehicle Approval: From Sidewall Numbers to Approved Sizes
How to read tire sidewall numbers, compare alternative tire sizes by diameter and circumference, and check whether a size is approved for your vehicle under local rules.
Wheel Valve Hole Diameter: Measuring for Valve Stem Fitment
Learn what tire sidewall numbers do and do not tell you about valve fitment, the common wheel valve hole sizes, and how to measure rim valve hole diameter for snap-in, clamp-in, TPMS and inner tube valve stems.
Oval Racing Tire Stagger: Reading the Sidewall, Measuring Circumference and Using Stagger in Setup
How oval racing tire stagger works, starting with sidewall numbers: metric and inch sizes, circumference calculations, stagger tape measurement, and go kart and dirt kart stagger.
Tire Clearance: How to Measure It and Compare Tire Sizes
What tire clearance is, how to read sidewall size codes, how to calculate diameter and width changes, and how to measure fender and suspension clearance.
Tire Valve Stem Pressure Ratings: Choosing a Compatible Valve
How to read tire sidewall markings, compare tire size geometry, and match a snap-in or clamp-in valve stem's pressure rating to your tire's inflation needs.
Spare Tire Carrier Size Limits: Checking Tire and Wheel Fit
How to read tire sidewall numbers, calculate overall diameter and width, and compare a tire and wheel against your spare tire carrier's size, bolt pattern and offset limits.
Approved Rim Widths by Tire Size: Checking Tire and Rim Compatibility
How to read tire sidewall sizes and find the approved rim width range, minimum rim width and maximum tire width for a rim, with typical charts and simple size calculations.