The chain keeper clamps to the rear dropout to hold the chain during wheel removal and maintenance. It keeps the chain away from the road while you move or lift the bike, helping to protect the chain and drivetrain. Key benefits - Keeps the chain clear of the ground during rear-wheel removal and lifting, reducing the risk of damage or mess. - Enables safe, hands-free maintenance (wheel changes, cleaning, lubrication) without chain snag. - Compatible with all gear changes and 1/8 inch chains for broad drivetrain compatibility. - Simple clamp-on installation on frames with 9 mm open-type drops; no special tools required. Compatibility and size - Fits frames with 9 mm open-type drops. - Works with 1/8 inch chains. How to use - Step 1: Remove the rear wheel from the bike. - Step 2: Clamp the chain keeper onto the dropout. - Step 3: Position the chain on the keeper so it stays clear of the ground or lifting area. Use scenarios - Roadside tire change on a road bike with the chain held away from the road. - Drivetrain cleaning or lubrication with the rear wheel removed. - Rear derailleur or cassette maintenance where a secure, clear chain is needed. Notes - Material not specified by the manufacturer. - Function, compatibility, size, and performance focus ensure reliable chain retention during maintenance sessions.