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Enter width (inches) and ET for your current and proposed wheels. We show how much the inner edge and outer lip move relative to hub — so you can sanity-check clearance and arch poke before you buy.
Current setup
New setup
Results
Inner clearance
-3.7mm
Away from suspension — more room inboard
Outer / arch poke
+16.3mm
More poke past hub — watch arches & guards
These deltas assume the same tyre sidewall and ignore camber or stretched tyres. Large positive inner change can foul struts; large positive outer change can rub arches or stick out past the body line.
Top view — schematic
Side view — outer lip vs arch
Grey block: current package. Red overlay: new wheel moves with outer delta (positive = more lip past hub, toward the arch line).
Inner — barrel vs strut / brake
Positive inner Δ moves the barrel toward the strut (less clearance). Green overlay tracks that shift; scale is clamped for display.