Because you love your bikes, when you're not riding them you're washing them, tuning them, or traveling to exquisite ride destinations. The Thru-Axle Chain Keeper is an ideal solution for keeping your bike chain secure during bike washing, tune-ups and traveling. This elegant, lightweight, bio-based plastic design fits perfectly on the axles of 12mm thru-axle dropout systems, no tools required. By keeping chain tension with the Thru-Axle Chain Keeper, you can be confident your bike is safe during drivetrain cleaning or travel.