Description
Shimano Nexus 21t Cog
- Shimano Nexus and Alfine cogs will work with either 1/8″ or 3/32″ chains
- Fits coaster brake and Internally geared hubs with 3-tab spline pattern drivers
Orders Over $30 Ship Free

Shimano Nexus 21t Cog Shimano Nexus and Alfine cogs will work with either 1/8″ or 3/32″ chains Fits coaster brake and Internally geared hubs with 3-tab spline pattern drivers
Safe and secure checkout
| Color | Silver |
|---|---|
| Option | 21t |