Park Tool Dummy Hub (DH-1) BSS-000888 the MTC-20 is the perfect

the MTC-20 is the perfect size for a jersey pocket or saddle bag

Dime is available in a bunch of great

Apart from protecting bottom bracket

3 includes all 14 wrench sizes currently produced by Park Tool

3mm bent internal — opens from 22mm down to 2mm (center to center)

Park Tool Dummy Hub (DH-1) BSS-000888 the MTC-20 is the perfectAbout Park Tool Dummy Hub (DH 1) The DH 1 Dummy Hub slides into the rear dropouts of a bicycle frame and replaces the rear wheel, keeping the chain in place while the wheel is removed for cleaning, service, or transportation. The unique design allows the bicycle to be pedaled and the derailleur to be shifted, making the DH 1 an essential tool for chain cleaning or diagnosis of drivetrain issues. Features Compatible with all multi speed and 1 8" chain