Bike Chain Roller Cog (13t) for Shimano Derailleur

Bike Chain Roller Cog (13t) for Shimano Derailleur

thingiverse

Tuned to fit as a replacement part for a Shimano roller cog (13 teeth). This is the upper cog. Original lower cog is different but I think it should work for both. Should tune parameters or scale geometry to fit such that the small steel sleeve bearing pops in but doesn't drag significantly. I already did this but could be different for your print and sleeve.

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