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How does a manual transmission work?
Power flows from the engine, through the clutch and the gearbox, to the wheels. The engine spins fast, but the wheels need different speeds, so the gearbox uses gears of different sizes: a small gear turning a big one gives a slower turn with more pulling force.
The gear lever slides a collar that locks one gear to the output shaft, while the other gears spin free. Pressing the clutch parts the engine from the gearbox, so the collar can slide in without grinding; release it, and the discs grip again. Next: how does an automatic gearbox work?
About this film
A 53-second widescreen (16:9) explainer film, made in the Constructivist poster style, published on 30 October 2026.
A 1920s machine poster follows the power from engine through clutch and gearbox to the wheels: gears trade speed for pull, a sliding collar locks one gear, and the clutch lets go so the collar can move, then grips again.
The style: Constructivist poster. Red wedges, black circles, halftone photos and geometric letters.
Scene by scene
- 0:00Cover: the manual stick in its H-gate, an automatic selector beside it
- 0:04Power flows: engine → clutch → gearbox → wheels
- 0:10The engine spins fast, the wheels need different speeds; the fix is gears
- 0:18Small gear turns a big one: slower, more pull
- 0:23The collar locks one gear to the output shaft; the rest spin free
- 0:32Clutch down parts the engine; release and the discs grip
- 0:41Recap: engine, clutch, gearbox, wheels — the power flows again
- 0:47Next: how does an automatic gearbox work?
Transcript
Gearboxes come automatic or manual. Let's open a manual. Power flows from the engine, through the clutch and gearbox, to the wheels. The engine spins fast, but the wheels need different speeds. The fix: gears of different sizes. A small gear turning a big one: slower, with more pulling force. The lever slides a collar that locks one gear to the output shaft; the rest spin free.
Pressing the clutch parts the engine from the gearbox, so the collar slides in without grinding. Release it, and the discs grip. Engine, clutch, gearbox, wheels: the power flows again. Next: how does an automatic gearbox work? Follow for more, or make your own with explain.film.
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