Makes wheel removal and chain service easier – Locks the rear derailleur cage forward to take spring tension off the chain, so the wheel drops out cleanly and chain work is faster and less frustrating.
Small, light, trail-ready – Compact enough for a saddle bag or pack. Durable and textured for grip, even with greasy or muddy hands.
Simple, one-step use – Pull the derailleur cage forward, slip the tool in place, and it holds the cage for you so both hands are free to work
Compatibility - Designed specifically for modern mountain bike rear derailleurs with similar cage geometry, the J Lock Tool is compatible with Shimano MTB drivetrains such as XTR, Deore XT, SLX, and Deore. It has also been verified on select full-suspension and hardtail platforms, including Trek Procaliber and Specialized Stumpjumper builds equipped with compatible drivetrain systems. It is not intended for Shimano road derailleurs or models with different cage shapes.