Park DH-1 Dummy Hub Envelope Shipping Features include a concealed co2

Features include a concealed co2 inflator head (Presta only)

The latest models have detents on the spring collar to prevent loosening under light preload conditions

Protection level:

V-cut stretch collar to reduce pressure against the neck

Park DH-1 Dummy Hub Envelope Shipping Features include a concealed co2Easy to use tool that makes chain maintenance a breeze! Compatible with standard QR dropouts and thru axles up to 12mm, the Dummy Hub from Park holds your chain in place without the rear wheel installed. Not only does it make it extremely easy to clean your chain, but works perfectly for transport by preventing the chain from rubbing your frame. Features: Compatible with all derailleurs and 1 8" chains. Works with standard QR dropouts up to 12mm thru