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[Closed] Magic/Singlespeed/maths question

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[#2244698]

Hello,

If I know the distance from the centre of the BB axle to the centre of the rear hub axle and the length of one chain link is there a formula I can use to calculate which chainring/sprocket combos will be a 'magic ratio'?
Do I need a different formula if I use a half-link?

Cheers,
Andy


 
Posted : 01/12/2010 9:47 pm
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There is a website somwhere that will tell you what magic ratio you can run but I can't for the life of me remember its name


 
Posted : 01/12/2010 10:39 pm
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thepodge - Member

There is a website somwhere that will tell you what magic ratio you can run but I can't for the life of me remember its name

This one?

[url= http://www.eehouse.org/fixin/formfmu.php ]http://www.eehouse.org/fixin/formfmu.php[/url]


 
Posted : 01/12/2010 10:43 pm
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magic ratio is a myth it is not a long-term solution. get a tensioner.


 
Posted : 01/12/2010 10:45 pm
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That's the one


 
Posted : 01/12/2010 10:45 pm
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That will do nicely, thanks very much.
STWoogle beats google yet again.


 
Posted : 02/12/2010 12:24 am