Topeak TetraRack R2 Rear Rack for Gravel/Road- Seatstay Strap Mount QuickTrack Compatible Black. The Topeak TetraRack R2 is the perfect quick-mount rear rack system attaches to road cross hybrid or touring bike seatstays. This one-size-fits-all rack features an innovative top plate that adjusts to level independent the seatstay angle. Integrated QuickTrack system allows Topeak TrunkBags to slide and lock into place and release with a the push of a button. Innovative hook and loop strap mounting system cinches down tight to keep the load stable and allow mounting on a wide range of bikes.

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