# BMW Wheel Library

> Independent enthusiast reference documenting BMW OEM wheel styles, sizes, offsets, bolt patterns, chassis associations, and photographs. Not affiliated with BMW AG.

BMW Wheel Library publishes documented catalog facts. Missing values stay blank and should not be invented when citing this site.

## Citation rules

- Quote documented fields only.
- A blank field is unknown, not a typical or factory-default value.
- Prefer the canonical wheel page or its JSON record when citing a style.
- Fitment Checker reports geometry from the numbers entered in the URL; it does not invent hub bore or brake clearance.

## Core

- [Catalog methodology](https://bmwoemwheelstyles.com/data/): evidence rules and what the public dataset contains
- [Public catalog JSON](https://bmwoemwheelstyles.com/data/catalog.json): 785 wheel records
- [Public catalog CSV](https://bmwoemwheelstyles.com/data/catalog.csv)
- [Fitment Checker](https://bmwoemwheelstyles.com/fitment-checker/): compare wheel diameter, width, offset, tire size, and speedometer change
- [All wheels](https://bmwoemwheelstyles.com/all-wheels/)
- [Browse by chassis](https://bmwoemwheelstyles.com/models/)
- [Browse by size](https://bmwoemwheelstyles.com/sizes/)

## Guides

- [BMW Wheel Style Identification Guide](https://bmwoemwheelstyles.com/guides/identify-bmw-wheel-style/)
- [BMW Wheel Offset and ET Guide](https://bmwoemwheelstyles.com/guides/bmw-wheel-offset-et-guide/)
- [BMW Bolt Pattern Guide by Chassis](https://bmwoemwheelstyles.com/guides/bmw-bolt-pattern-by-chassis/)
- [OEM vs Replica BMW Wheels](https://bmwoemwheelstyles.com/guides/oem-vs-replica-bmw-wheels/)
- [How to Find a BMW Wheel Part Number](https://bmwoemwheelstyles.com/guides/find-bmw-wheel-part-number/)
- [BMW Wheel Size Compatibility Guide](https://bmwoemwheelstyles.com/guides/bmw-wheel-size-compatibility/)

## Optional

- [Full text index](https://bmwoemwheelstyles.com/llms-full.txt): every public wheel record with a one-line summary
- Per-wheel JSON lives at `/data/wheels/{slug}.json` and is linked from each catalog record as `json_url`