Feedback Sports 17807 Thru-Axle Chain Keeper

Protects rear derailleur by maintaining chain tension when the rear wheel is removed. Ideal bike service tool for washing, tune-ups and traveling. Accommodates road bikes, cyclocross bikes, mountain bikes, electric bikes, fitness bikes and more. Fits 12 mm Thru-Axle dropouts. Prevents the chain from slapping against delicate and painted frame surfaces. High-density, solvent resistant, bio-based PA56 roller is easy on your chain, yet incredibly durable. CNC machined aluminum body is corrosion-resistant and comfortable in-hand. Tool-free, easy-install design makes use simple and effective for beginner or professional bike mechanic. Sustainability Ability Group (SAG) approved - bio-based material, low packaging volume, and mono-material for easy recycling.