Rear Rack, silver quick release pannier , seat post rear rack, Alloy for seatpost QR fixation. Pannier side rails, Capacity of 22 LB, weigh 1 1/4lb, QR silver pannier Bike Seat Post Rear Rack, Alloy for seatpost fixation. Pannier side rails, Silver, Capacity of 22 LB, weigh 2.2 lb,