Drill down into a generation: per-vehicle modifications with OEM specs and fitment deltas (package)

Bolt pattern is expressed as the number of lugs by the diameter of an imaginary circle formed by the centers of the wheel lugs. You can use GET /by_rim/bp/ to get a list of available value values. (e.g. 5x114.3)

Rim diameter is the distance measured in inches across the face of the wheel, from bead seat to bead seat. You can use GET /by_rim/rd/ to get a list of available value values. (e.g. 19)

Rim width is the distance measured in inches from bead seat to bead seat. You can use GET /by_rim/rw/ to get a list of available value values. (e.g. 7.5)

Rim offset is a distance between wheel mounting surface where it is bolted to hub and the centerline of rim. You can use GET /by_rim/of/ to get a list of available value values. (e.g. 38)

Centre bore value, mm (e.g. 60)

The fd parameter represents the diameter of the wheel fastener threads, measured in millimeters (mm). This parameter is essential for ensuring a secure fit of the wheel's bolts or lug nuts. For a list of possible values and additional details, please refer to the Thread Size ISO and UN Series Glossary on Wheel-Size.com. (e.g. 14)

Frontspace poke tolerance in mm. 0 = exact or safer only (no poke). Default: 2. (e.g. 2)

Backspace push tolerance in mm. 0 = exact or safer only (no push). Default: 2. (e.g. 2)

[Deprecated] Mapped to bs_push. Use bs_push instead.

[Deprecated] Safe direction is now uncapped. Mapped to bs_push if sent alone. Use fs_poke/bs_push instead.

Overall diameter tolerance as a decimal fraction (0–0.05). Default: 0.01 (1%). (e.g. 0.01)

Overall width tolerance as a decimal fraction (0–0.03). Default: 0 (0%).

Widen rim diameter search window by ±N inches. 0 = exact match only. Default: 0.

Sort order: name (A-Z), fitment (closest FS delta), load (heaviest first).

Section width is the width of the tire in mm. You can use GET /by_tire/sw/ to get a list of available value values. (e.g. 225)

The Aspect ratio is indicated on the tire sidewall as a percentage. It's the height of the sidewall measured from wheel rim to top of the tread, expressed as a percentage of tire width. You can use GET /by_tire/ar to get a list of available value values. (e.g. 45)

A car's Make is the brand of the vehicle. You can use GET /makes/ to get a list of available slug values. (e.g. mitsubishi)

The particular Model of the brand. You can use GET /models/ to get a list of available slug values. (e.g. outlander)

Vehicle Generation refers to the life cycle of a design for a specific make and model. You can use GET /generations/ to get a list of available slug values. (e.g. 18d10dc6e6)

Maximum number of items to return (default 100, max 1000).

Number of items to skip before collecting the result set.