How to Install a New Stopper on Your Reformer
By Pilates Reformer Machines for Home & Commercial | Published: 2026-10-25
Category: How-to Guides
Learn how to safely install a replacement stopper on your Pilates reformer. This guide covers tools, alignment, and common mistakes to keep your carriage movement smooth and controlled.
Quick answer
To install a new stopper on your reformer, first remove the old one, then align the replacement stopper with the mounting holes and secure it firmly. Always verify the stopper style matches your machine before starting.
Why a worn or missing stopper affects your reformer
The stopper controls the carriage's travel range. When it wears down or goes missing, the carriage can move unpredictably, which compromises your practice and can lead to injury. Replacing it restores smooth, controlled movement.
Choosing the right stopper for your machine
Stoppers come in different styles to fit specific reformer models. The genuine replacement stopper from Pilates Reformer Machines for Home & Commercial is available in two styles, so select the one that matches your machine. Using the wrong style can cause improper fit or premature wear.
Step-by-step stopper installation
- 1. Remove the old stopper: Use a screwdriver or hex key (depending on your reformer model) to unscrew the fasteners holding the old stopper in place. Pull the stopper free. If it is stuck, gently pry it with a flathead screwdriver. Common mistake: Forcing the stopper off can damage the mounting bracket. Work slowly and apply even pressure.
- 2. Align the new stopper: Position the new stopper over the mounting holes. Ensure the orientation matches the original—some stoppers have a top and bottom. The stopper should sit flush against the frame. Checkpoint: The stopper must not be tilted or crooked, or the carriage travel will be uneven.
- 3. Secure the stopper: Insert the screws or bolts and tighten them evenly. Do not overtighten, as this can strip the threads or crack the stopper. Hand-tighten, then give a final quarter turn with the tool. Common mistake: Overtightening can cause the stopper to crack or the screws to strip. Stop as soon as the stopper is snug.
- 4. Test the carriage movement: Slide the carriage back and forth through its full range of motion. It should move smoothly and stop firmly at the new stopper. If you feel resistance or hear a clunk, recheck alignment and tightness. Checkpoint: If the carriage still travels too far or too little, the stopper may be the wrong style or not fully seated.
What you need for the job
- Stopper: This genuine replacement stopper is designed to maintain the smooth, controlled movement your carriage relies on. Available in two styles to fit your specific machine. Choosing the correct style ensures a snug fit and prevents the stopper from loosening during use, keeping your reformer safe and reliable.

Stopper
