リア

noun, prefix, na-adjective

rear; back

Used as a noun, prefix, or adjectival noun to refer to the rear or back part of something, often in technical or mechanical contexts (e.g., cars, bicycles, devices).

• この車くるまはリアシートが広ひろい。

  This car has a spacious rear seat.

• 自じ転てん車しゃのリアタイヤがパンクした。

  The rear tire of my bicycle got a flat.