If a 6 speed gear box has a 1st gear ratio of 7:1 and a sixth gear ratio of 1:1(adsbygoogle = window.adsbygoogle || []).push({});

how would you calculate the 2nd,3rd,4th and 5th gear ratio's?

If you use the equation for geometric progression which was my first thought - it doesn't work!

Any ideas?

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# Quite a tricky gear ratio question to ponder

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