This guide explains how to assemble the Enviolo Automatic (AutomatiQ) hub interface on a wheel with a 148mm modular axle hub, and then how to assemble the rear wheel onto the bike frame.

Backward compatibility

This guide is compatible with legacy Enviolo and NuVinci 148mm modular axle hubs.

Forcing entry with incorrect parts will result in damage

Ensure you have an interface with the correct spline nut for your hub - 40T or 44T. Forcing entry might damage the spline nut of either parts.

Spline nut

Spline nut compatibility

There are 2 variants of the Enviolo Automatic (AutomatiQ) interface with different spline nuts (A) – 40T and 44T. The serial sticker at the bottom identifies if it has 40T or 44T.

Their compatibility with Enviolo hubs depends on the year of the hub. Since 2025, we commmonized all hubs with 40T, but some older hubs have 44T splines:

2025

• Hubs with 40T – All hubs are commonized with 40T.
• Hubs with 44T – Discontinued.

2024 and earlier

• Hubs with 40T
  • 148mm modular axle – All modular hubs.
  • 135mm solid axle - Heavy Duty, Extreme, Extreme Gearbox, CA.
• Hubs with 44T
  • 135mm solid axle - Urban, City, Trekking, CO, SP, CA.

Step-by-step instructions

Video

Tools

• 17mm flat wrench
• Torque wrench with 17mm socket
• 5mm hex wrench
• 3mm hex wrench

Assembly instructions

1. Use the uninstalled hub interface to determine the desired orientation.
   • Orientation should be forward, parallel to the chainstay with the Enviolo Automatic (AutomatiQ) main connector facing forward (A).
     
2. Move the Enviolo Automatic (AutomatiQ) interface along the dropout to ensure clearance at different axle positions (B).
   
3. Remove the anti-shift retainer if one is installed on the hub.
   • The anti-shift retainer comes typically installed on new hubs.
     
4. Match the position of the interface with the position of torque arm on the other (left) side of hub.
   • Place the torque arm onto the axle and orientate it in an angle that it slides into the boss on the brake adapter or dropout.
   • Note: The torque arm can only be mount in three positions.
5. Fix the torque arm with 3mm hex wrench
6. When the assembly angle is aligned, seat the Enviolo Automatic interface fully onto the axle.
7. Thread the right-hand nut, serrations facing outward, onto the axle.
   • Tighten it to 8-10 Nm.

Next step

Proceed to the assembly of the 148mm rear wheel onto the bike frame: How to assemble an Automatic-equipped (AutomatiQ) rear wheel on a 148mm modular axle frame