Tyre Size Calculator – Bob Jane T-Marts

Tyre Size Calculator – Bob Jane T-Marts

x

We're having trouble finding your vehicle

We couldn't find a match for vehicle #{rego}, #{vehicleSearch.regoState}

We've found a match for your vehicle

#{vehicle.make.display_name} #{vehicle.model.display_name}

#{vehicle.display_name}

#{vehicle.year_from} - #{vehicle.year_to}

Saving your vehicle...

Not my vehicle

#{formatVehicleDisplay(activeVehicle)} #{((activeVehicle.make?.display_name || '') + ' ' + (activeVehicle.model?.display_name || '')).trim()} #{selectedSizeDisplay} Select Vehicle / Size

#{storeSelector.nearestStore.node.name}

#{loc.item.name}, #{loc.item.state}

#{loc.postcode}

#{store.node.name} (#{store.distance}km)

Select Store

Directions Call Store

Frequently purchased together

No image

Service

#{upsell.title}

#{line}

#{upsell.price}

Please select a store first

Installed by certified technicians at your chosen store

#{getUpsellDescBubble(upsell)}

Cart

Frequently purchased together #{upsell.title} — #{upsell.price}

No image

#{line.node.merchandise.product.title}

Checking stock... Available In stock at #{selectedStoreName} Available at #{selectedStoreName} Available in #{lineStockStatus(line)?.days} days at #{selectedStoreName} Not available at #{selectedStoreName} #{selectedStoreName}

#{linePromo(line).isLoading ? 'Adding promo...' : linePromo(line).message}

Calculating...

#{line.node.totalPrice}

#{line.node.totalPrice} #{line.node.discountPrice}

#{isFitmentRemovalLocked(line) ? 'Required for promo' : 'Remove'}

Faster option for all items: #{bestAlternativeStore.name} — All items in stock today — All items available in #{bestAlternativeStore.availableDays} days

Some items not available nearby

Your cart is empty

You saved:#{discount}

Total:

#{preDiscountTotal}#{total}

Cart

Your Details

Rego

State

Vehicle

Fitment date Earliest: #{earliestFitmentDate} · Mon–Sat only Clarkson is not accepting till 8th of June 2026. Note: all fitting times are in your selected store's local timezone

Fitment time We're closed on Sundays — please select another day #{fitmentTimeRangeLabel} Note: all fitting times are in your selected store's local timezone

Notes

Confirm I have checked the tyre and/or wheel size on my car and accept the Terms & Conditions I acknowledge and agree to the Terms and Conditions regarding product stock availability.

Tyre Size Calculator

Find Alternatives

Compare Tyres

Tolerance ±%

Equivalent sized Rim

Difference

Size

Circumference

Tyres

Wheels

#{line.diffPct.toFixed(2)}%
#{line.width}/#{line.aspect}R#{line.rim}
#{line.circumference.toFixed(1)}mm
View #{line.width}/#{line.aspect}R#{line.rim} Tyres
View #{line.rim} Inch Wheels

Smaller Rim

Difference

Size

Circumference

Tyres

Wheels

#{line.diffPct.toFixed(2)}%
#{line.width}/#{line.aspect}R#{line.rim}
#{line.circumference.toFixed(1)}mm
View #{line.width}/#{line.aspect}R#{line.rim} Tyres
View #{line.rim} Inch Wheels

Larger Rim

Difference

Size

Circumference

Tyres

Wheels

#{line.diffPct.toFixed(2)}%
#{line.width}/#{line.aspect}R#{line.rim}
#{line.circumference.toFixed(1)}mm
View #{line.width}/#{line.aspect}R#{line.rim} Tyres
View #{line.rim} Inch Wheels

Original Tyre

Replacement Tyre

Tyre 1

Tyre 2

Difference

Diff. %

Sidewall Height
#{outcomeA.sidewall}mm
#{outcomeB.sidewall}mm
#{diff.sidewall}mm
#{diffPct.sidewall}%

Diameter
#{outcomeA.diameter}mm
#{outcomeB.diameter}mm
#{diff.diameter}mm
#{diffPct.diameter}%

Circumference.
#{outcomeA.circumference.toFixed(1)}mm
#{outcomeB.circumference.toFixed(1)}mm
#{diff.circumference}mm
#{diffPct.circumference}%

Revs per /KM
#{outcomeA.revsPerKm.toFixed(1)}
#{outcomeB.revsPerKm.toFixed(1)}
#{diff.revsPerKm}
#{diffPct.revsPerKm}%

Speedometer Effect

If speedo reads 100 km/h actual speed becomes #{indicatedAt100} km/h

Compare: #{totalCompare()}/3

#{p.title} #{p.title}

Add #{compareUnitLabel}