Replacement sprockets for use with Bosch E-bike drivetrainsHigh quality manufacturing and hardening processes make the Connex sprockets for Bosch `new era` E-bike series extremely resistantPerfect for the Performance Line CX, Performance Line and Active Line drive systems1/2` x 3/32`Bosch16T1.9mmSilver1/2x3/32`StandardUPC/EAN/GTIN: 4041319001919