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Help with 1x12 conversion needed

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Help with 1x12 conversion needed

Old 07-21-20, 07:41 PM
  #1  
tilleya
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Help with 1x12 conversion needed

I have a 2012 anthem 29er that I'm trying to convert from 2x10 to 1x12. Got a set of sram gx shifter, cassette, and derailleur, and a 32t ring from Amazon. I installed all, and each shift causes the chain to ride on the top of the teeth on the front ring for a second, and once I get to the third largest cog or so, it jumps the front ring. Thoughts?
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Old 07-22-20, 11:36 PM
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cpach
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Did you install a new 12 speed chain? Didn't mention that. Also getting the correct chain length and B tension are both pretty important.

Is your chainring spaced correctly for your bike's chainline?
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Old 07-23-20, 01:34 AM
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bikeme
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cpach's second point is what was going thru my mind--maybe the OP got ahold of a boost chainring (I'm pretty sure 2012 is non-boost) or is using or missing a spacer?
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Old 07-23-20, 09:18 AM
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grubetown
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Agree with all suggestions - chain and chain line are what I would ensure are correct.
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