Shimano Mechanical Derailleur Cage Locker Tool
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This custom tool makes it easier to remove and re-install your rear wheel or perform maintenance on your drivetrain.
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Model information
- Source
- Printables
- Category
- Tools
- License
- Standard Digital File License
🚲 Making Wheel Changes a Little Easier
Ever struggled to remove your rear wheel on a Shimano 12-speed setup while the derailleur fights back? Yeah — same here.
I got tired of wrestling with spring tension every time I needed to clean, tune, or swap a wheel. So I designed my own Shimano mechanical derailleur cage locker that keeps the cage in place — it locks the cage exactly where you want it, so your hands are free to focus on the task.
I also modified the model so it fits on your keyring — tiny loop on the end accepts a split ring, so you can carry it on your keys or clip it to your saddle bag. Small, handy, and always with you when you need it.
✅ Fits Shimano 12-speed Deore, SLX, XT, and XTR mechanical derailleurs
✅ Quick, easy, and safe to use
✅ A simple little tool that saves a lot of frustration and makes maintenance way smoother.
🧰 Print details:
Layer height: 0.2 mm
Print with supports
Color: depends on your filament — I used black and gray
Walls: 5 for extra strength
Infill: 18%