Pannier Mounts - 16-18 mm - Round Tubing Pannier mounts with 16 mm-18 mm round tubing hangers, greater adjustability and are the quick-release, lockable solution for soft luggage and gear, Mounts are ultra light and tough, with quick release, quick-mount, lockable black anodized aluminum plates secure Giant Loop*s Round The World or MotoTrekk Panniers, Can also be used with Rotopax gas/water cans for easy installation on many popular side luggage rack systems, Comes with two mounts and four matching keys, Includes a stainless steel hardware kit to attach Giant Loop*s Round The World Panniers (12 x bolts, washers, locknuts), Aircraft-grade aluminum with an anodized black finish weighs only 4 lbs., Pre-assembled latch and hooks with a thumb screw on each side to prevent mounts from sliding on rack tubing, Multiple webbing slots for anchoring MotoTrekk Panniers or other gear, Pre-drilled for Rotopax mounts, Thumbscrew prevents Pannier Mount from sliding on rack tubing, Add the optional GSA Adapter Kit for BMW GS Adventure equipment luggage racks and other racks with *step* around exhaust., Will NOT fit BMW 800GSA factory side luggage racks.