If you’ve ever removed the rear wheel of your bike-for cleaning, maintenance, or travel-you’ve likely faced the same problem:
a loose, dangling chain and a vulnerable rear triangle. Without support, the chain can tangle or scratch the frame, while the rear derailleur and stays risk bending under pressure.
This is where a Dummy Hub (also known as a chain keeper or bike maintenance tool) comes in. A dummy hub replaces the rear wheel axle when the wheel is removed. It keeps the drivetrain aligned, maintains chain tension, and protects the rear triangle from compression damage.
🔧 Meet the Granite ChainDock Dummy Hub
The Granite ChainDock Dummy Hub is designed to do more than just hold your chain in place. It’s a lightweight, durable, and versatile solution for both bike travel protection and everyday maintenance.
Whether you’re boxing your bike for an overseas race, loading it into a car for a weekend ride, or performing routine cleaning, the ChainDock ensures your bike stays safe and your maintenance runs smoothly.
🛡️ Key Features of the ChainDock Dummy Hub
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Ultimate Protection – Safeguards the rear triangle from compression damage when the wheel is removed, especially during airline transport.
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Perfect Fit – Adjustable length from 130mm–157mm, covering most hub sizes and fitting a wide variety of road and MTB frames.
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Enhanced Chain Management – Features an integrated chain docking wheel that keeps the chain straight and allows you to spin the crank for smooth cleaning and adjustment.
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Wide Compatibility – Works with both Quick Release (QR) and 12mm thru-axle setups, so one tool fits multiple bikes.
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Robust Construction – Made from 6061 alloy, combining strength with lightweight durability, only 120g. Perfect for both travel and workshop use.
🧳 Practical Use Cases
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Airline Travel & Race Transport – Protects your frame from heavy luggage pressure.
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Bike Cleaning – Keeps the chain aligned after wheel removal, making it easier to scrub and lubricate.
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Workshop or Team Support – A must-have for mechanics handling multiple bikes.
🛠️ How to Use the ChainDock Dummy Hub
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If your bike uses a quick-release dropout, insert the QR adapter. |
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Adjust the Chaindock to match the length of your rear dropout, then hand-tighten the orange lock nut. |
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Place the chain onto the pulley wheel and insert the QR or 12 mm rear axle to secure the Chaindock in position.
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Rotate the crank, clean, or transport your bike with confidence. |
✅ Final Thoughts
The Granite ChainDock Dummy Hub may look like a small accessory, but it plays a big role in keeping your bike safe and ready to ride.
With one tool, you get:
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Bike travel protection during flights or transport.
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Chain keeper functionality for smooth maintenance.
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Universal compatibility across QR and thru-axle systems.
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Lightweight, durable construction that lasts.
From international race travel to routine garage cleaning, the ChainDock is the dummy hub that protects your bike on the go and simplifies every maintenance step.
👉 Discover the Granite ChainDock Dummy Hub and make it part of your essential bike toolkit today.
