Features:

• 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 standard 9mm Quick-Release style dropouts

• Fits 12mm Thru-Axle dropouts

• Prevents the chain from slapping against delicate and painted frame surfaces

• High-density Delrin™ roller is easy on your chain, yet incredibly durable

• CNC machined aluminum body is corrosion-resistant and comfortable in-hand

• Tool-free, single-hand design makes use simple and effective for beginner or professional bike mechanics