The Dummy Hub chain holder mounts in your rear drop out, keeping tension on the chain so you can de-grease, and clean your chain without worrying about it falling or swinging around and getting dirty black oil all over the chainstay. Ideal if you often travel with your bike in the car to events and take out the rear wheel. The hub will stop the chain from getting twisted or grease on other items.

• Suitable for vertical dropouts used on geared bikes
• Adjustable