Tire & wheel reference guides

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• Tire and wheel glossary
• Tire load index chart
• Tire speed rating chart
• Bolt pattern guide
• Rim diameter guide
• Plus sizing guide
• Plus-sizing fitment study
• Wheel width and offset compensation study
• Tire type guide — P, LT, metric, radial & flotation
• How to read a tire size
• Tire section width guide
• Tire aspect ratio guide
• Wheel offset (ET) guide
• Tire age & DOT date code guide
• Speedometer error guide
• Tire tread depth without a universal safety shortcut
• Summer vs all-season vs winter tires
• Tire rotation guide
• Tire pressure guide
• Wheel alignment guide
• Run-flat tire guide
• Tire storage guide
• Aquaplaning guide
• Wheel balancing guide
• Nitrogen vs air in tires
• Winter driving tire tips
• Tire noise: a symptom to document, not a remote diagnosis
• Tire sidewall damage guide
• Tire puncture repair guide
• EU tyre label guide
• Tire load capacity guide
• Tire recycling guide
• Tire compound guide
• Tire tread patterns: sidewall markings control the next step
• EV tires: specification, load and efficiency guide
• TPMS guide
• Mixing tires without hiding the compatibility limits
• Tire warranty guide
• Choosing a tire speed rating for the vehicle and real use
• Tire tread wear indicators and accurate tread checks
• Wheel balancing vs alignment: what is the difference?
• Cold tire pressure guide
• Tire sidewall markings decoder
• Tire pressure and fuel economy guide
• Tire upsizing and downsizing guide
• Tire wear rate: measure the tire, not a generic mileage promise
• Tire cracking and ageing guide
• Rim types and materials guide
• Tire fitting and mounting cost guide
• Tire retreading guide
• Tire inspection checklist
• Trailer and caravan tire pressure guide
• EV tire speed rating: match the vehicle specification
• MOT and roadworthiness tire requirements
• Spare tire types explained
• Crossply vs radial tires: construction explained
• Rim width and tire fitment guide
• Tire pressure for heavy loads and towing
• Winter tire laws by country
• Tire size conversion guide
• Are used tires safe? A buyer's guide
• Tire valve types: TR413, TPMS sensors, and metal valves
• Wheel spacers: hub-centric vs lug-centric, legality and risks
• Tire delamination: belt separation, tread chunking, and when to scrap
• Tire bead damage: causes, fitting damage, and why bead faults are unrepairable
• Tire blowout: causes, warning signs, and what to do when one happens
• Low-profile tires: handling, comfort, damage risk, and aspect ratios explained
• Alloy wheel repair: scuffs, cracks, buckles — what can and cannot be repaired
• Tire flat spots: vibration needs inspection, not a road test
• UTQG ratings explained: treadwear, traction, and temperature grades on your tire sidewall
• Tire road hazard warranty: what is covered, what is excluded, and how to claim
• Tire rolling resistance: EU label and evidence guide
• Wheel bolts vs wheel studs: differences, regional standards, torque specs, and safe installation
• Directional vs non-directional tires: how to identify them, fitting rules, and rotation patterns
• Tire overloading: what happens when you exceed the load rating, and how to avoid it
• Tire contact patch: evidence and measurement guide
• Tire heat buildup: pressure, load and evidence guide
• Tire hydroplaning speed: evidence and risk guide
• Tire wear patterns: an inspection clue, not a remote diagnosis
• Tire cornering stiffness and slip angle: evidence guide
• Tire speed rating exceeded: evidence and next steps
• Tire ply rating and load range: what LT tire load ranges mean and how to choose the right one
• Tire aspect ratio and handling: evidence guide
• Summer tires in cold weather: why summer tires lose grip below 7°C and what to do about it
• Tire section width effects: evidence and fitment guide
• Staggered tire fitment: why sports cars use wider rear tires and what it means for tire rotation and replacement

More tools

• Tire size calculator
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• Speedometer error calculator
• How TireFitLab calculates fitment