i had a generic cog on my goldtec it was close but not touching EAI cog sits further out and was quieter. as long as there are no marks on the spokes from the chain it will be o.k. it's either touching or it isn't
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i had a generic cog on my goldtec it was close but not touching EAI cog sits further out and was quieter.
as long as there are no marks on the spokes from the chain it will be o.k. it's either touching or it isn't