The Thru-Axle Chain Keeper will keep the chain of bikes with 12mm Thru-Axle dropout systems out of the way during washing, tune-ups or travel to events. It can be installed by hand and is made from light, recyclable, bio-based plastic.Key features:Constructed from lightweight, bio-based plasticWith a high density, solvent resistant PA56 roller that is durable but easy on your chainMaintains chain tension when rear wheel is removedIdeal for bike washing, tune-ups, travellingFits 12mm Thru-Axle dropouts onlyPrevents damage to rear derailleur, delicate or painted frame surfacesFor tool-free, single-hand installation, suitable for use by mechanics of all abilitiesAccommodates a wide variety of bikes, from road to MTB to fitnessSustainability Action Group (SAG) approved due to its use of bio-based material, low packaging volume and mono-material for easy recycling