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Topeak MTX TrunkBag DXP Expanding panniers

The MTX TrunkBag uses a unique material process to provide our largest, stiffest, and most weather resistant MTX series bag.
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Article number: BG1787

In addition to the expandable top section and rear water bottle holder, the side panels expand to full panniers maximizing capacity. Compatible with all MTX QuickTrack® racks with attachable side frames. MTX Dual Side Frames are required when using panniers on MTX BeamRacks.


  • 22.6 L / 1380 ci Capacity
  • 600 denier polyester
  • Molded EVA foam insulation
  • Water bottle holder, Shoulder strap, Carrying handle, 3M™ reflective strip Safety light clip, Elastic top bungees
  • 1 divided main compartment with multi-stage expandable top, Two side with expandable panniers
  • MTX QuickTrack® with attached side panels
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