eli5: What’s the purpose to the 1 up 5 down shift pattern on motorcycle?

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I’m curious to why motorcycles essentially gear upwards from neutral to 1st. Then gear in the shifter down from 1st into 2nd, then 3rd and so on.

How do motorcyclists get back into neutral too? When gearing down from 2nd does it hit neutral before 1st?(and the gearbox just ignores neutral when upshifting?)

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5 Answers

Anonymous 0 Comments

If I’m understanding this correctly, you’re describing GP shifting.
Most bikes go up, with 1st being bottom, a half notch to neutral, 2nd-3rd-4th-5th- maybe 6th.

Some bikes are the opposite since it’s easier to jam through up shifts on rapid acceleration with a deep lean angle like what would be needed on a race bike. The Standard way was just what was chosen since it’s easy and there was an established agreement to standardize.

Neutral is a half notch shift. Not quite the same force between 1 and 2, and yes, when shifting it doesn’t really matter what gear it’s in if the clutch is still pulled in so having neutral between doesn’t matter. It matters even less because you’re flying through the gear shift pretty quickly.

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