Dynamic Pocket Sprocket Chain Keeper

The Dynamic Pocket Sprocket chain keeper holds the chain in place while you clean or lubricate the drivetrain. It slides onto the 12 mm thru-axle, keeping the chain in the groove so you can work on the chain, chainrings and derailleur more easily. It is designed for those who maintain their own bike and want to clean the drivetrain neatly.

The kit comes in three parts that snap together, with instructions inside the packaging. As well as helping with cleaning, it prevents the chain from scratching the frame during transport. It is 3D printed using recycled plastic. It is designed for 12 mm thru-axles.

Established in the 1980s within a German distributor, Dynamic is now based in The Hague, Netherlands. It offers cleaners, lubricants, waxes, greases and tools to care for your bike, from everyday rides to weekends on two wheels. It has operated independently since early 2020.