Chorus Rear Derailleur - 12-Speed pedal small part Integrated QuickTrack™ system allows Topeak

Integrated QuickTrack™ system allows Topeak TrunkBags to slide and lock into place and release with a the push of a button

and your chances of walking out of the woods are forever minimized

Designed to fit up to 70-inch hips

— all while keeping its aerodynamic attributes

30mm Inner rim width

Chorus Rear Derailleur - 12-Speed pedal small part Integrated QuickTrack™ system allows TopeakThe 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 the direction the bike is advancing On rough