For fitting a front derailleur
The BMC 30004027 derailleur hanger allows you to switch from a single-chainring drivetrain without a front derailleur to a double-chainring drivetrain. Sold with all mounting screws, the derailleur hanger attaches along the seat tube of the BMC Kaius 01 frame
Derailleur hanger
Front derailleur mounting
Supplied with screws and cover
BMC part number 30004027
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