Current setup Proposed setup Hub mounting face

Current setup

Enter the wheel and tyre currently fitted.

Proposed setup

Enter the new wheel and tyre combination.

Optional measured clearance

Add real measurements for a more useful fitment verdict.

Suggested wheel

Choose a wheel product Select a product in the theme editor to display it here.
Outer position—Compared with current
Inner clearance—Compared with current
Track width change—Approximate per axle
Effective offset—Offset after spacer
Tyre diameter—Difference from current
Speedometer—Actual at indicated 70 mph
Ride height—Change from tyre radius
Tyre fit—Indicative relationship

Fitment verdict

Calculate to view result

Compare the current and proposed wheel positions against the same hub mounting face.

—
MeasurementCurrentProposedDifference
Wheel poke———
Wheel inset———
Tyre diameter———
Tyre circumference———

Important notes

  • Results are geometric estimates only.
  • Wheel-spoke and brake-barrel clearance still need checking.
  • Semi-slick tyres often run wider than their nominal size.
  • Full steering lock, compression travel and alignment still matter.
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