The Alloy Wheel Fitment, Tyre Stretch, Rolling Radius & Speedo Error Calculator
Health and safety, car basics, and vehicle structures.
Hands-on exercises that translate theory into workshop skills.
Cooling, exhausts, and transmission systems (clutch, gearbox, and axles).
Tools for systematic fault-finding and maintenance.
Health and safety, car basics, and vehicle structures.
Hands-on exercises that translate theory into workshop skills.
Cooling, exhausts, and transmission systems (clutch, gearbox, and axles).
Tools for systematic fault-finding and maintenance.
Use our comprehensive online wheel size calculator to visualise different alloy wheels and tyre combinations. Calculate your offset, compare tyre stretch, rolling radius and more. Compare your new and existing setup and our tool will show you key measurements for accurate wheel and tyre fitment.
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