# What Is A Straight-Twin Engine? (And Is It Similar To A Flat-Twin Engine?)

> A straight-twin engine, also called an inline-twin or parallel-twin, is a two-cylinder setup where both cylinders sit side by side, upright, and share a single crankshaft.

- **Source:** [SlashGear](https://www.slashgear.com/1846741/straight-twin-engine-different-from-flat-explained/?utm_source=gearopen.com&utm_medium=referral&utm_campaign=feed&utm_content=68328fd15bb5d33bedc0a4e1)
- **Published:** 2025-05-25
- **Category:** Cars
- **Tags:** #twin #engine #straight #cylinder #flat #side #similar #arranged
- **Canonical:** http://localhost:4321/a/68328fd15bb5d33bedc0a4e1

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_GearOpen's distilled summary. The full original article is published at SlashGear (source link above); GearOpen does not republish the source's full text._