Comments on: 42×16 to 44×16 to 43×16 http://arupdesigns.co.uk/blog/archives/393 achieving my goals by making them public Mon, 20 May 2013 19:01:35 -0500 http://wordpress.org/?v=2.8.1 hourly 1 By: patrick http://arupdesigns.co.uk/blog/archives/393/comment-page-1#comment-128512 patrick Wed, 01 Aug 2012 11:54:38 +0000 http://arupdesigns.co.uk/blog/?p=393#comment-128512 Nice blog - The Sheldon Brown gear ratio calculator is a nice tool...http://sheldonbrown.com/gears/ - .. you can plug in your desired top end RPM (with wheel & tyre size options).. and a selection of gears you are interested in...and it will spit out the speed at that RPM. - I choose gears based on knowing I want as low a gear as possible to kick out of lights...+ I live at the bottom of a steep 1000m hill. I can spin at 120rpm when really trying... 39x16 yields speed of around 37kph with 25mmx700c's.....but mostly i plonk around at 90rpm (good training)! Single & free BTW...try it if you have never Nice blog
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The Sheldon Brown gear ratio calculator is a nice tool…http://sheldonbrown.com/gears/
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.. you can plug in your desired top end RPM (with wheel & tyre size options).. and a selection of gears you are interested in…and it will spit out the speed at that RPM.
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I choose gears based on knowing I want as low a gear as possible to kick out of lights…+ I live at the bottom of a steep 1000m hill. I can spin at 120rpm when really trying… 39×16 yields speed of around 37kph with 25mmx700c’s…..but mostly i plonk around at 90rpm (good training)!
Single & free BTW…try it if you have never

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