High performance 9 speed e-bike chain KMCe9T NPNP is hi-performance 9 speed chain, dedicated for e-bikes. Accurate Shifting and high drivetrain efficiency High torsion resistance High pin power Non Directional Better durability for longer rides DETAILS 136 links 1/2"x 11/128" Pin length 5,9 mm Nickel plated BUYERS OPTIONS Colour: silver INCLUDES Spare chain links Instruction manual COMPATIBILITY Bosh e-bike systems, and other e-bike systems on the market