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Reducing the Front Sprockets of my carbon gate system

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Reducing the Front Sprockets of my carbon gate system

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Old 12-03-22, 02:55 AM
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squall99e
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Reducing the Front Sprockets of my carbon gate system

Hi I am currently using Gates Carbon Drive Centertrack 55T 130BCD Sprocket
Gates Carbon Drive belt, Centertrack, 118 tooth
Gates Carbon Drive Centertrack 22t cog Nexus/Alfine


I am looking to change to Gates Carbon Drive Centertrack 50T 130BCD Sprocket, how do I check what is the correct belt to use? Can I mix CDX 46T 130mm with CDC centretrack rear cog?
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Old 12-03-22, 04:42 AM
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https://www.gatescarbondrive.com/bike#resources


Tons of reading on Gates website, have you tried emailing them?
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Old 12-03-22, 03:32 PM
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Simple math, assuming 1/2" pitch, plus or minus 4 teeth changes belt length by 1". (the belt wraps 1/2 way around the chainring).

This is not absolutely precise, but the small error should be within the range of the tension adjustment system.

BTW- if the pitch isn't 1/2", the same rule applies, just do the math to convert pitches to inches.
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Old 12-03-22, 05:46 PM
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Gates has a calculator on their website assuming you have the needed info
Here is all their tools for belt drives including a sonic reader for the phone if you want something with you at all times rather than the Krikit which is more of a home tool:
https://www.gatescarbondrive.com/products/tools

You cannot mix CDX and CDC. I think possibly CDX and CDN but I wouldn't I would go CDX always unless I couldn't for some reason. Long lasting and better construction.
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