Shimano Shimano Nexus 21T rear cog

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21T rear cog for Shimano Nexus hub. Suitable for 3, 7 or 8-speed Nexus hub. Works with either 3/32 or 1/8-inch wide chains.
Article nr.:
ASMGEAR21SU
21T rear cog for Shimano Nexus hub. Suitable for 3, 7 or 8-speed Nexus hub. Works with either 3/32 or 1/8-inch wide chains.