Built especially for medium and large size frames, the Topeak RX BeamRack (V-Type) is a lightweight seatpost rack with included side frames for use on road or fitness bikes. It carries up to 15lbs and has an integrated rubber bungee cord to secure your gear, plus a clip to hold a RedLite tail light. The exposed QuickTrack system is compatible with Topeak RX TrunkBags. Just slide, click and go! Durable aluminum construction ensures bombproof performance without a weight penalty.