Shockwave Parts
Drivetrain Dummy Gear | Digital STL (Print it yourself)
Drivetrain Dummy Gear | Digital STL (Print it yourself)
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This is a digital STL file to be printed by the buyer. No physical product will be shipped.
Drivetrain Dummy (STL) | Chain Tension While the Wheel Is Off
The Drivetrain Dummy replaces your rear wheel to keep the chain tensioned and the derailleur aligned during cleaning, transport, or service. It slides onto a 12 mm thru-axle like a mini cassette, preventing chain rub and letting you spin the cranks to check shifting with the wheel removed.
⚠️ STL File Only
This is a digital download. You are purchasing the STL file to 3D print the tool yourself. No physical product is shipped. You can download the file a maximum of 3 times.
Frequently Asked Questions
What does the Drivetrain Dummy Gear STL file do, and how does it work?
The Drivetrain Dummy Gear STL is a 3D-printable tool that slides onto a 12 mm thru-axle to replace the rear wheel during bike maintenance. It keeps the chain tensioned and the derailleur aligned so you can spin the cranks and verify shifting without the wheel installed. It is designed for cleaning, transport, and service scenarios where the wheel must be removed.
What 3D printing settings are required to print the Drivetrain Dummy Gear?
Shockwave Parts recommends printing the Drivetrain Dummy Gear in PETG for heat resistance and strength, using a 0.4 mm nozzle, 0.20 mm layer height, 4 wall lines, and 20% infill. No supports or bed adhesion are required, making it straightforward to print on most FDM printers.
How does the Drivetrain Dummy Gear STL compare to commercially manufactured drivetrain dummy tools?
Commercial drivetrain dummy tools are pre-manufactured and ready to use out of the box, but typically cost significantly more and require shipping wait times. The Drivetrain Dummy Gear STL costs CAD $6.49 and lets you print as many copies as needed for personal use, making it practical for home workshops or riders who want a spare on hand immediately.
Is the Drivetrain Dummy Gear a physical product, and does Shockwave Parts ship to Canada?
The Drivetrain Dummy Gear is a digital product, no physical item is shipped. You receive an STL file (downloadable up to 3 times) and print it yourself. Because nothing is physically shipped, Canadian customers receive the file instantly after purchase, with no shipping fees or delivery wait.
What are the license terms for the Drivetrain Dummy Gear STL, and can Canadian buyers print multiple copies?
The license permits personal use only: you may print an unlimited number of copies for your own use. Sharing, uploading, selling, sublicensing, or remixing the STL file or printed parts for resale is prohibited. Completing the purchase constitutes acceptance of these terms, and any use outside them may result in legal action.
Print Specifications
- Material: PETG (recommended for heat resistance + strength)
- Nozzle: 0.4 mm
- Layer height: 0.20 mm
- Wall lines: 4
- Infill: 20%
- Supports: Not required
- Bed adhesion: Not required
What’s Included
- 1 × STL file — Drivetrain Dummy (12 mm shaft)
- 3 downloads max from Shopify
- No physical item is shipped
License & Terms – Personal Use Only
- Print for your own personal use (unlimited copies allowed)
- Do not share, upload, sell, or redistribute STL files or printed parts
- No commercial use, sublicensing, or remixing for resale
Purchasing or downloading this STL means you have read and accepted these terms.
Acceptance of Terms
By completing your purchase, you acknowledge that you’ve read, understood, and accepted all licensing and usage conditions. Any use outside these terms is prohibited and may result in legal action.
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