I’ve driven manual for years and STILL don’t understand why you need to change gears.

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I get that low gears > more power but low speed. I get that high gears >low power but high speed.

But can someone give me the brain dead intuition of why you need to change gear “sizes”? A single sentence if possible.

I’ve tried Googling it but they always use a bike example. I’ve never ridden a bike. Or they start talking about ratios and it just goes over my head.

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57 Answers

Anonymous 0 Comments

instead of a round gear picture a lever under a load. If you push the lever to the ground the load goes up. If the fulcrum, the base the lever tips on, is close to the load, you can lift more weight. This is the same as having a small, low, gear. If the fulcrum is far from the load you can’t move as much weight but your motions are exagerated on the load side. You can move the load more with less movement on your end. This is like a large/high gear, less power but your engine needs to spin less times/slower to spin the tires more times/faster than the lower gears.

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