Lock ring for the Arise Echo hub and similar.
Size: 1.37" × 24t BSA thread, 5mm thick, 39mm OD
Material: 7075-T6 alloy
Features:
- CNC machined 7075-T6 Aluminium
- Shimano HyperGlide fitment
- larger 39mm diameter for a tighter and more secure hold on the cog
- for use with 39mm OD BB tool
- fits Arise Echo cassette hub
- 5mm thick

Arise Echo Cassette Lockring
Description
Echo Lockring