The most loaded single-chair RSM configuration we sell. The DIY Setup takes the Fully Loaded RSM (chair, Big Boy attachment, Tool Tray) and adds the Adjustable Backrest, the upgrade that lets you raise the backrest higher on your back, tilt it back up to 10 degrees, and dial it in to your body and the way you actually sit. Four components, one chair, every comfort and support upgrade we make for it.

You save $160 over buying the four pieces individually. This is the chair to build when you spend serious hours in your garage and want the seat dialed in completely. Not a quick-task chair. The chair you settle into for a full Saturday in the shop.