Campagnolo Chorus Rear Derailleur - 12-Speed MFPN=141-34005 QuickTrack rack system is compatible

QuickTrack rack system is compatible with all Topeak MTX TrunkBags and MTX Rear Baskets

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Compatible with 12-42T and 12-46T 8-speed cassettes

Campagnolo Chorus Rear Derailleur - 12-Speed MFPN=141-34005 QuickTrack rack system is compatibleCampagnolo Chorus Rear Derailleur 12 Speed. The Campagnolo Chorus 12 speed rear derailleur features 3D Embrace technology and 12 tooth pulley wheels making it suitable for all cassettes as the distance stays optimum on each individual sprocket regardless of the cassette selected. Embrace technology not only keeps the rear derailleur vertically aligned in the perfect position for each sprocket it now makes the upper pulley wheel advance perfectly in