Calculates the new offset required when changing wheel width or adding spacers, helping to maintain the same wheel position relative to the suspension.
Start with your values, or try a preset.
Enter Original Wheel Offset (mm), Original Wheel Width (inches), New Wheel Width (inches), and Spacer Size (mm) - Leave 0 if not using spacers in the units shown.
Read Half Inch Difference (mm) and New Offset (mm) in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Original Wheel Offset (mm): 45 mm; Original Wheel Width (inches): 7 inches; New Wheel Width (inches): 8 inches; Spacer Size (mm) - Leave 0 if not using spacers: 0 mm
Half Inch Difference (mm): 12.7 mm; New Offset (mm): 51.35 mm
Original Wheel Offset (mm): 45 mm; Original Wheel Width (inches): 7 inches; New Wheel Width (inches): 8 inches; Spacer Size (mm) - Leave 0 if not using spacers: 5 mm
Half Inch Difference (mm): 12.7 mm; New Offset (mm): 56.35 mm
Original Wheel Offset (mm): 45 mm; Original Wheel Width (inches): 7 inches; New Wheel Width (inches): 7 inches; Spacer Size (mm) - Leave 0 if not using spacers: 10 mm
Half Inch Difference (mm): 0 mm; New Offset (mm): 55 mm
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