This guide helps identify and disassemble the old magnet rings. It covers the magnet rings for the legacy Enviolo Automatic, Enviolo Automatic+, NuVinci Harmony, and NuVinci Harmony H|sync interface models. 

This is useful to know, for example, when retrofitting a bicycle to the latest Enviolo Automatic.

The legacy magnet rings

Legacy magnet rings

These were the previous hub magnet rings:

• A - Automatic, Automatic+ (these have a white sticker inside).
• B - Harmony, Harmony H|sync (these look like part of the hub shell).

Step-by-step instructions

Tools

• 2,5mm Allen key
• Flat screwdriver (optional)

Instructions

Disassemble the legacy sprocket magnet ring

• Remove the old sprocket magnet.
  • The previous sprocket magnet ring is just clipped in and can be easily removed without a tool.

Disassemble the legacy hub magnet ring

For the legacy Automatic, or Automatic+ ring:

• Remove the old magnet ring using a 2,5mm Allen key.

For the legacy Harmony, or Harmony H|sync ring:

• Remove the old magnet disk.
  • Use the help of a flat screwdriver to lift the disk
  • Note that this magnet disc can be confused as being part of the hub shell.