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Chainring and Freewheel Ratio

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BMX1973:
I know there have been similar threads about this before.

On a 20" BMX most riders use a 44T Chainring with a 16T Freewheel.

My question; what is equivalent to this on a 24" BMX Cruiser?

I will probably be using a 40T Chainring.  :-\

Thanks in advance.  :daumenhoch:

Jaymz:
41/17 with 175mm cranks
40/17 with 180mm cranks

BMX1973:
Cool  :coolsmiley: Is there a chart that I can down load from somewhere? Thanks. :)

Why is it a different set up to a 20"?   :-[

Could you still use a 44T & 16T or would it all be set up wrong. Seen a couple of 24" like this.  :-[


--- Quote from: Jaymz on September 06, 2016, 01:00 PM ---41/17 with 175mm cranks
40/17 with 180mm cranks

--- End quote ---

Jaymz:
Pretty sure theres a thread on the museum with a link to something, failing that try sheldon browns website

rooski:
2.75 is the best ratio for 20" wheels, not sure about 24" bit less I think( 2.3? )

Divide big by small eg 44/16 =2.75  40/15 =2.66 

24" wheel is a different ratio as the bigger wheel is harder to turn.

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