A lighter duty version for MTB and commuter use. QR mechanism is secure and easy to use. 7 kg (15 lb) carrying capacity. Compatible with all MTX TrunkBags. Includes hidden storage tray, rubber bungee and safety reflector.Specs:- CLAMP Fits 25.4 - 31.8 mm (shims Incl.) MATERIAL Aluminum beam / Plastic cargo deck BAG COMPATIBILITY MTX TurnkBags MAX WEIGHT CAPACITY 7 kg / 15 lb ADDED FEATURES Rubber bungee, Storage tray, Safety reflectorRedLiteA(R) Mount, Tail Light Mount SIZE 51 x 12.5 x 9 cm / 20.1" x 4.9" x 3.5" WEIGHT 688 g / 1.52 lb