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Home > How it Works > I Want To Raise The Gearing On My Motorcycle, I Have A 17T Sprocket Fitted And Want To Fit A 23T Sprocket. How Do I Calculate The Difference In %?

I Want To Raise The Gearing On My Motorcycle, I Have A 17T Sprocket Fitted And Want To Fit A 23T Sprocket. How Do I Calculate The Difference In %?

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bobby554 | 12:28 Mon 01st Apr 2013 | How it Works
3 Answers
I make it 3.91% This can't be correct can it?
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Avatar Image Zacs-Master
This might help bobby
http://www.ehow.com/info_8043094_sprocket-ratio-calculations.html
12:47 Mon 01st Apr 2013
Avatar Image buildersmate
Try this:

If the sprocket on the other end of the chain has 100T, the current gear ratio is 5.88 (100/17). If you change the 17T to 23T, the new gear ratio is 4.35 (100/23). So the previous ratio of 5.88 has changed to 4.35, a change of 1.53 (5.88-4.35). The percentage change is (1.53/5.88)*100, or 26%.
18:19 Mon 01st Apr 2013
Avatar Image beso
Such a huge change will make your bike very sluggish to get moving.
10:31 Wed 03rd Apr 2013

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I Want To Raise The Gearing On My Motorcycle, I Have A 17T Sprocket Fitted And Want To Fit A 23T Sprocket. How Do I Calculate The Difference In %?

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