Topeak MTX Trunk Bag EXP - TT9647B

The Topeak MTX Trunk Bag EXP is a high-capacity storage solution designed for cyclists. It feature...

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Product Information

Full details

The Topeak MTX Trunk Bag EXP is designed for commuters and long-distance touring cyclists who require a high-capacity, versatile storage solution that integrates seamlessly with their bike rack. Its primary benefit is the 16.6-liter expandable design that offers flexible storage for both daily essentials and larger gear, though users should note it specifically requires an MTX QuickTrack rack equipped with side frames to utilize the full pannier functionality.

All features

MaterialPolyester
Model Part NumberTT9647B
BrandTOPEAK

Extended Product Information

FAQs

Does this bag fit all bike racks?

No, it is specifically designed for Topeak MTX QuickTrack racks. It will not work on standard non-QuickTrack racks.

Can I use the panniers without the main compartment?

The side panniers are integrated into the main bag and fold out from the sides; they cannot be detached independently.

Is the bag waterproof?

The material is water-repellent, meaning it can handle light rain, but it is not submersible or fully waterproof in heavy storms.

How much weight can it carry?

The weight capacity depends on the rack it is mounted to; always adhere to the maximum weight limit specified by your rack manufacturer.

Can I attach a tail light to it?

Yes, the bag features an integrated safety light clip specifically for this purpose.

Troubleshooting

Bag does not slide onto the rack easily

Check the rail for debris or buildup and ensure the spring-loaded lock at the back is not stuck.

Bag feels loose on the rack

Ensure the bag is pushed fully forward into the locked position until the audible click is heard.

Panniers touch the rear wheel

Verify that your rack is equipped with side frames to prevent the panniers from swinging inward toward the spokes.

Pros and Cons

Pros

  • Expands significantly to accommodate more cargo
  • Secure QuickTrack attachment prevents shifting while riding
  • Rigid structure protects contents from impacts
  • Water-repellent material handles light rain well
  • Reflective accents and light clip improve visibility

Cons

  • Requires a specific MTX-compatible rack with side frames
  • Not fully waterproof in heavy downpours
  • Adds significant width when panniers are fully expanded

Setup, Compatibility & Care

To mount the bag, simply align the track on the bottom of the bag with the MTX rail on your rack and slide it forward until you hear a click. To remove, press the yellow release button at the rear and pull the bag back. Compatibility is limited to Topeak MTX QuickTrack racks; for optimal stability and use of the panniers, ensure your rack has side support frames. To care for the bag, wipe it down with a damp cloth after rides in muddy or wet conditions. If the bag becomes heavily soiled, it can be hand-washed with mild soap and cold water; avoid machine washing or drying, as these can damage the EVA foam and the water-repellent coating.

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