This guide will help you assemble the sprocket and hub magnet rings on your bicycle wheel.

Magnet rings

New magnet rings

Sprocket ring

The Enviolo Automatic (AutomatiQ) system comes with a sprocket magnet ring (A) that must be secured onto the assembled sprocket snap ring on the hub. The twelve magnets on the sprocket magnet ring provide a pedal cadence to the Enviolo Automatic system.

Hub ring

Additionally, the Enviolo Automatic system also requires a hub magnet ring (B) that must be secured over the internal gear hub, and flush with the internal gear hub cover. Six magnets in the hub magnet ring provide the eBike speed for the Enviolo Automatic system.

You’ll need to assemble both for the system to work.

Step-by-step instructions

Video

Pre-2024 freewheels – snapring freewheel)

Post-2024 freewheels – threaded freewheel

Tools

• 2,5mm Allen key
• Sprocket magnet ring
• Hub magnet ring (for the Urban hub this is a smaller version) 

Assembly instructions

Assemble the sprocket magnet ring

1. Place the sprocket on the hub.
2. Place the sprocket spacer (skip if you have a Gates sprocket).
3. Place the snap ring.
4. Install the sprocket magnet ring over the assembled sprocket snap ring (A).
   • Make sure the magnets are facing the sprocket.
   • Make sure the “tooth” on the sprocket magnet ring aligns with the opening of the sprocket snap ring.

Assemble the hub magnet ring

1. Install the hub magnet ring over the right-hand side of the hub.
2. Secure the magnet ring with the included fastener (D).
   • The fastener may need to be unthreaded to allow initial fitment.
   • The magnet ring should face the larger diameter flange outboard and the fastener inboard.
   • The magnet ring should not stick out too much, and it should be aligned with the flat surface of the hub (as shown below).
3. Torque the fastener to 1.0 Nm (9 in-lbs).
   • Make sure the fixation point is not on one of the outside spokes.

Next steps

If you followed all the steps correctly, your magnet rings are now assembled. Next, you should assemble the Enviolo Automatic interface:

• How to assemble the Enviolo Automatic interface on a 135mm solid axle wheel
• How to assemble the Enviolo Automatic interface on a 148mm modular axle wheel