The ultimate quick-mount system attaches to the seatstays of gravel and road bikes. A clever hook-and-loop strap mounting system allows quick and easy installation on a wide range of bikes. Its innovative top plate automatically levels itself regardless of the seatstay angle. The integrated QuickTrack® system lets Topeak TrunkBags slide lock securely into place and release in an instant. Seatstays with hook and loop straps attachment Aluminum / Engineering grade polymer / Nylon straps Fits road and gravel bikes up to 700x50C 80-110mm seatstay widths centre to centre Works with Topeak MTX / MTX 2.0 QuickTrack® system 9kg / 20lb max load Features clamp for front reflector 39.5x30x12cm 950g *TetraRack is not recommended for carbon forks and seat stays *TetraRack series racks are not compatible with front or rear mounted V-Brake type systems