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-   -   keepin the ratio (https://www.bikeforums.net/singlespeed-fixed-gear/581214-keepin-ratio.html)

joeschmo 09-03-09 11:40 AM

keepin the ratio
 
Hey all, got a question. Im looking to upgrade my crankset so its not the horrible old creaky one that came on this bike in 1977. Right now Im using 40t in the front and a 14t cog in the rear. This ratio works pretty well for me, could stand to be a little bit heavier. My question is, since the crankset i've found is a 46t, what cog should i purchase to keep things around the way they are. I've read the sticky on this but it involves entering a lot of information about my bike that I am not really sure of. Thanks!

j3ffr3y 09-03-09 11:44 AM


Originally Posted by joeschmo (Post 9608067)
Hey all, got a question. Im looking to upgrade my crankset so its not the horrible old creaky one that came on this bike in 1977. Right now Im using 40t in the front and a 14t cog in the rear. This ratio works pretty well for me, could stand to be a little bit heavier. My question is, since the crankset i've found is a 46t, what cog should i purchase to keep things around the way they are. I've read the sticky on this but it involves entering a lot of information about my bike that I am not really sure of. Thanks!

~16t

ianjk 09-03-09 11:44 AM

40/14 = 46/?

14*46/40 = 16.1

joeschmo 09-03-09 11:53 AM

sounds good. if i get the 46t and leave my cog on for now how much heavier will my ratio actually get. still be managable starting out and attacking hills and such

j3ffr3y 09-03-09 12:03 PM


Originally Posted by joeschmo (Post 9608162)
sounds good. if i get the 46t and leave my cog on for now how much heavier will my ratio actually get. still be managable starting out and attacking hills and such

http://www.rideyourbike.com/images/skidspots.jpg


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