The Topeak MTX TrunkBag EXP offers exceptional capacity and rugged reliability for touring or commuting cyclists. With a large 16.6 L main compartment and expandable pannier side panels, this bag keeps your gear organized and accessible on long rides. Built from durable 600 denier polyester reinforced with rigid EVA foam, it maintains its shape while repelling water and road grime. Compatible with all Topeak MTX QuickTrack racks that include side frames, the EXP mounts securely and releases with a simple slide. A rear bottle holder, shoulder strap, carrying handle, and reflective elements add comfort and safety. Whether for daily commutes or multi-day bike tours, the MTX TrunkBag EXP delivers strength, convenience, and ample storage for every ride.