Herman Miller Mirra 2 Chair Back and Lumbar Replacement Tutorial

Herman Miller Mirra 2 Chair Back and Lumbar Replacement Tutorial

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How to Replace the Back and Lumbar on Your Herman Miller Mirra 2 Chair?

Welcome back to our Herman Miller Mirra 2 tutorials, where we aim to empower you with the knowledge to maintain and customize your Mirra 2 chair for optimal comfort and longevity. In this tutorial, we'll guide you through the process of replacing the back of your Mirra 2 chair, whether you're looking to change the entire back with the spine or simply the lumbar support without the spine. Let's dive in!

Tools Needed:

  • Screwdriver
  • Bolts (provided with the new back or lumbar)

Steps to Replace the Back or Lumbar:

Removing the Seat:

  • Begin by removing the seat to access the back area. If you need guidance on this, refer to our dedicated seat replacement video linked in the description.

Removing the Existing Back:

  • Unbolt the two bottom screws to gain access to the spine's base.
  • Push the back slightly as demonstrated to expose the screws at the spine's base fully.
  • Unbolt the two screws in the spine's base to detach the back and lumbar.

Installing the New Back and Lumbar:

  • Position the new back and lumbar at the angle shown, avoiding a 90-degree angle to ensure proper securing.
  • If you're only replacing the lumbar, follow the same steps without removing the entire back.
  • Reinsert the bolts at the back of the spine's base and tighten them to secure the new back or lumbar.

Replacing the Back Without the Spine:

  • To replace the back without the spine, start by removing the clips on both sides with a screwdriver.
  • Align the new back onto the hooks and snap it into place.
  • Insert and tighten the screws at the bottom, then reattach the clips on both sides.


You've now mastered the replacement of the back or lumbar on your Herman Miller Mirra 2 chair, ensuring your seating solution continues to provide the utmost support and comfort. Whether you've opted for a full back replacement or a lumbar adjustment, these steps will help you achieve a successful update.

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