Koya Wheels Calculator
Left = Outer side (fender), Right = Inner side (suspension). Center dashed line = hub mounting face
Existing
Baseline
Wheel Size (in)
Wheel Width (in)
Offset Mode
ET (mm)
Backspace (mm)
ET
Backspace
Tyre Width
Tyre Profile
Camber (°)
New
Candidate
Wheel Size (in)
Wheel Width (in)
Offset Mode
ET (mm)
Backspace (mm)
ET
Backspace
Tyre Width
Tyre Profile
Camber (°)
Compare
Swap
Reset
Existing
New
Centerline
Results
Poke
—
Inset
—
Diameter Difference
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Speedo @ True 100
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The results of the calculation are indicative only and subject to verification.
Top = Existing | Bottom = New
WHEEL FRONT
CAR SUSPENSION
WHEEL FRONT
CAR SUSPENSION
Existing
New
Tyre Arrow (top)
Tyre Arrow (lower)
Rim Arrow (poke)
Rim Arrow (back) Backspace
Result Table
Existing
New
Difference Δ (New−Ex)