en.wikipedia.org/wiki/Airco_DH.1

The Airco DH.1 was an early military biplane of typical "Farman" pattern flown by Britain's Royal Flying Corps during World War I. By the time the powerplant for ...

www.parktool.com/product/dummy-hub-dh-1

Also called a sleeping hub, the DH-1 slides into rear dropouts and replaces the rear wheel for cleaning and transport. Works with all derailleur and 1/8" chain.

www.amazon.com/Park-Tool-DH-1-Dummy-Hub/dp/B07GNXV6RL

Sleeping Hub; The DH-1 slides into rear dropouts and replaces the rear wheel for chain cleaning and transport; The DH-1 works with all derailleur and 1/8" ...

www.ask.com/youtube?q=D.+H.1&v=sJr-aj5aMAA
Feb 17, 2015 ... More info: http://www.parktool.com/product/dummy-hub-dh-1 Also called a sleeping hub, the DH-1 slides into rear dropouts and replaces the ...

www.chainreactioncycles.com/us/en/park-tool-dummy-hub-dh-1/rp-prod149804

Park Tool Dummy Hub - DH-1 - Lowest Prices and FREE shipping available from The World's largest online bike store - Chain Reaction Cycles.

www.wiggle.com/park-tool-dummy-hub-dh-1

The DH-1 works with all derailleurs and 1/8" chains. The unique design allows the bike to be shifted and works with open dropout and thru-axle frames up to ...

www.jensonusa.com/Park-Tool-DH-1-Dummy-Hub

Also called a sleeping hub, the Park Tool DH-1 slides into rear dropouts and replaces the rear wheel for chain cleaning and transport. The DH-1 works with all  ...

www.performancebike.com/shop/hndtl-prk-dummy-hub-40-6254

Item 40 - 6254 ... p>Park Tool has made the ultimate in shop convenience with the DH-1 Dummy Hub. No more fumbling with your chain with the rear wheel off.

www.bike24.com/p2116898.html

Park Tool ▷ The DH-1 slides into rear dropouts and replaces the rear wheel for chain cleaning and transport.