ALFINE Chain Tensioner Mechanical Disc and exceptional traction in the

and exceptional traction in the harshest winter conditions

disc locks

Take on rough roads

9 piece L style hex wrench set

A high security disc-style cylinder adds pick and drill resistance

ALFINE Chain Tensioner Mechanical Disc and exceptional traction in theDescription The Shimano Alfine Double Pulley Chain Tensioner CT S500 is designed for Shimano Alfine equipped bicycles that need reliable chain management with an internal gear hub setup. It uses a double pulley design to help maintain proper chain tension and is intended for builds where chain growth or drivetrain setup requires a tensioner. Shimano states that the CT S500 can accommodate a front chainring difference of 16 teeth and works with