Mount a rear rack to your D-Fuse seatpost equipped bicycle. This simple hex bolt mounting, aluminium collar has integrated rack mounting option so you can easily expand your luggage capacity - begin planning the ride of a lifetime.Fits the following bike models;Giant Defy DiscGiant Defy 0, 1 & 2Liv Avail DiscLiv Avail 1 & 2Liv InviteLiv Invite CoMaxLiv ThriveLiv Thrive CoMaxPlease note: this seat collar is designed to fit the bicycle frame, not the seatpost itself. If you are unsure, please speak to your local Giant retailer before purchasing to ensure compatibility. FeaturesMaterial: Aluminium constructionFit: D-fuse seat tubesMounting: Hex boltMax weight: 25kgSeat collar with integrated rack mountingSizes34.9mm