# Wheel rim

> A wheel rim is the metal hoop the tyre sits on; it is joined to the hub by spokes or cast spokes to form the wheel.

- **Also known as:** Tekerlek, Poyra, Döküm jant, Telli jant, Rim
- **Turkish term:** Jant
- **Category:** [Wheels & Hubs](https://motorsikletparcasi.com/en/category/wheels-and-hubs)
- **Page:** https://motorsikletparcasi.com/en/glossary/wheel-rim

- **Spoked wheel:** the hub and rim are laced with spokes; usually run with inner tubes, and tough against impacts.
- **Cast (alloy) wheel:** one piece, usually fitted with tubeless tyres.

Rim size is given as diameter (inches) and width (e.g. MT3.50 × 17); the tyre width must suit the rim width. The hub contains [bearings](https://motorsikletparcasi.com/en/glossary/bearing) and a spacer. Check for run-out, loose spokes and cracks.

## Related terms

- [Tyre size](https://motorsikletparcasi.com/en/glossary/tyre-size): A tyre size is the code giving tread width (mm), aspect ratio (%) and rim diameter (inches), e.g. 120/70-17.
- [Tyre pressure](https://motorsikletparcasi.com/en/glossary/tyre-pressure): Tyre pressure is the air pressure inside the tyre, measured in bar or psi; it directly affects grip, braking distance, tyre life and fuel use.
- [Bearing](https://motorsikletparcasi.com/en/glossary/bearing): A bearing is a machine element that reduces friction between a rotating shaft and a fixed housing using balls or rollers.

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- Source page: https://motorsikletparcasi.com/en/glossary/wheel-rim
- Last updated: 2026-10-09
- Türkçe sürüm: https://motorsikletparcasi.com/sozluk/jant.md
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