- Splined cogs from Echo as found on their complete bikes.
- Designed fit the drive shells on 2016 and newer Echo splined hubs, not compatible with standard Shimano spline hubs or older Echo splined hubs.
- Manufactured from high quality, durable ChroMo steel.
- Wide base prevents cogs from digging into the driveshell
- Compatible with all 1/8" and 3/32" chains.
- Black finish.