Wippermann connex 7e8 e bike chainthe wippermann connex 7e8 e bike chain is perfect for demanding cycling that puts a lot of stress on your chain the reinforced chain links transfer the torque from the e bike drivetrain providing exceptional shifting efficiency and minimal chain stretch features dimensions 12 x 332 pin length 880mm roller width 240mm pin hardening case hardened links 124 weight 513gbuy wippermann components from chain reaction cycles the worlds largest online bi