Kmc E-Bike Sprocket 38T chainring MFPN=WH21AERBST30XD29R HEX drive 102T technology delivers

HEX drive 102T technology delivers 3

EnCase System Multi-Tools

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Kmc E-Bike Sprocket 38T chainring MFPN=WH21AERBST30XD29R HEX drive 102T technology deliversReplacement E Bike chainrings for Bosch Gen 3 and 4 drivetrains. New tooth design provides vastly improved chain retention and interface. Gen 3 and 4 available in multiple tooth counts and multiple chainlines for Gen 4 chainrings TECH SPECS Mount Compatibility Direct Mount Teeth 38T Type Material Spec Color Black Chain Compatiblity 1 2x11 128` Tooth Type Standard Weight Offset 3mm