The Echo Lockring is a precision CNC-machined lockring designed for the Arise Echo hub and compatible cassette hubs. Made from durable 7075-T6 aluminium, it provides a secure cog hold thanks to its oversized 39mm outer diameter and reliable Shimano HyperGlide fitment.

Features

• CNC machined from high-strength 7075-T6 aluminium
• Shimano HyperGlide compatible fitment
• Oversized 39mm outer diameter for improved cog security
• Designed for use with Shimano 39mm OD BB tool
• Compatible with Arise Echo cassette hub and similar systems
• Lightweight and durable construction

Specifications

• Thread Size: 1.37" × 24t BSA
• Thickness: 5 mm
• Outer Diameter: 39 mm
• Material: 7075-T6 Alloy
• Compatibility: Shimano HyperGlide / Arise Echo Hub

Compatibility & Notes

• Fits Arise Echo cassette hubs and similar hub systems
• Requires Shimano 39 mm OD bottom bracket tool for installation
• Ideal for secure fixed cog or singlespeed setups