Topeak's Explorer Tubular Rack is a great add-on for carrying a trunk bag, pannier or anything else you want to strap onto your big-wheeled bike. It's made of tubular aluminum, fits most bikes with disc brakes, hauls up to 55 pounds and has a center strip that acts like a short fender. It's compatible with Topeak's QuickTrack bags and accessories (sold separately), too.

Topeak's Explorer Tubular Rack is a great add-on for carrying a trunk bag, pannier or anything else you want to strap on. It's made of tubular aluminum, fits most bikes, and has a center strip that acts like a short fender as well as a spring-loaded bar to hold down your belongings.

Topeak's MTX TrunkBag DX boasts an expandable main compartment to carry all the gear you need. It's built to last with rigid molded panels mated to 600-denier nylon. And, it's packed with handy features, such as a shoulder strap, carrying handle, taillight clip and top elastic straps. There are even reflective strips for safety. Plus, Topeak's ingenious MTX System makes it a snap to attach it to your Topeak MTX QuickTrack rack (sold separately).

MTX QuickTrack compatible TrunkBag featuring a divided main compartment constructed with Topeak's unique process of combining rigid panels and flexible fabric for structure and water repellency. Features two mesh side compartments for extra capacity and rear water bottle holder lets you carry more water on extended trips. - Attachments: 1 divided main compartment, two mesh side pockets - Capacity: 8L / 480 ci - Added Features: Water bottle holder Shoulder strap Carrying handle Elastic top bungees 3M reflective strip Safety light clip Optional rain cover - Size (L x W x H): 35 x 21 x 19 cm / 14.2” x 8.3” x 7.5” - Weight: 870 g / 1.92 lb