Autolounge

Tire Spacing and Offset

These calculators will help in determining a given wheels backs pacing, front spacing, or offset. The calculator below will determine the back and front spacing for a given wheel. To determine speed based on tire size visit the gearing calculator.

Rim Width
(inches)		 Offset Back Spacing
Front Spacing

The calculator below will supply an offset based on the type of spacing and the amount of spacing provided.

Rim Width
(inches)
Front/Back
 Spacing
(inches)		 Offset

The calculator below will determine back and front spacing based on tire section width. Only select this calculator if the tire sticks over the edge of the rim (total rim width, edge to edge, is equal to rim width plus approximately half an inch of lip on each side). Thus when a manufacturer states a rim is 7" wide, it is actually around 8" from edge to edge.

Tire Section Width
(mm)
Wheel Offset
Back Spacing
Front Spacing

NOTE: These calculators are good for approximations. The only real way to find out what works for a given situation is to try it out.


Chris Moris | theautolounge@autolounge.net