# Changing gear ratios

**URL:** <https://community.electricforum.com/t/changing-gear-ratios/2911>\
**Category:** GEM Forum\
**Created:** [January 1, 2013, 9:05am UTC](https://community.electricforum.com/t/changing-gear-ratios/2911 "2013-01-01T09:05:52Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![Old\_Houseboater](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.electricforum.com/old_houseboater/32/544_2.png) [@Old\_Houseboater](https://community.electricforum.com/u/Old_Houseboater)\
**Post date:** [August 12, 2015, 7:40pm UTC](https://community.electricforum.com/t/changing-gear-ratios/2911/22 "2015-08-12T19:40:38Z")

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What is your current gear ratio?

What gears do you have in hand (number of teeth on each)

Reason for changing ratio?

Below are common ratios and gear combinations

RATIO… TOOTH COUNT…1ST RED…2ND REDUCTION  
8.9 TO 1…27,53- 26,118…1.96…4.54  
10.35 TO 1…27,53-,22,116…1.96…5.27  
9.31 TO 1…27,53- 24,114,…1.96…4.75  
12.44 TO 1…21,55-,24,114…2.62…4.75  
11.89 TO 1…21,55- 26,118…2.62…4.54

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