Shimano CS-S500 Alfine/Nexus Cog. Fits coaster brake and Internally geared hubs with 3-tab spline pattern drivers. Shimano Nexus and Alfine cogs will work with either 1/8″ or 3/32″ chains. Cog Snap Ring: Used to attach driver cog to internally geared Shimano Nexus & Alfine hubs
SPECIFICATIONS
CHAINRINGS 1x
MODEL CS-S500
SERIES Alfine/Nexus
SIZE: 1/8″ OR 3/32″
CATEGORY Cog
TEETH 18T, 20T
Shimano Item # UPC
18T w/Guard ICSS50018
UPC : 689228120372
18T w/o Guard ICSS50018X
UPC : 689228690042
20T w/Guard ICSS50020
UPC : 689228134379
20T w/o Guard ICSS50020X
UPC : 689228690066
Original Shimano parts guarantees that all components work perfectly for optimum performance and maximum safety and longevity.










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