REI Co-op Junction Rack Trunk
Haul your daily essentials with the REI Co-op Junction Rack Trunk. Pair it with our Junction Saddlebag Panniers when you need extra room. Or transform it into a tote bag for casual carry off the bike.




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- Hook-and-loop straps around the perimeter allow for quick and easy attachment and removal from your bike's rear rack
- Side buckles quickly release corners to make packing easier and allow bag to expand for larger items
- With side buckles released, the bag works as a tote bag for casual off-the-bike carry
- Folded (standard configuration) capacity: 15 liters; unfolded (tote bag configuration) capacity: 16 liters
- Zippered exterior pocket offers quick access to items like your phone or wallet
- Interior organization panel and mesh pockets help keep your gear and daily essentials sorted on the go
- Internal key clip makes finding keys easy
- Reflective webbing loops to attach a light
- 400-denier recycled oxford nylon fabric is resistant to abrasion, tearing and punctures; it's durable and ready for daily use
- Durable water repellent (DWR) made without PFAS helps moisture bead up on the surface
- Specially designed to share space on your rear rack with the REI Co-op Junction Saddlebag Panniers (item #250120; not included)
- Maximum load of the trunk is 15 lbs., but don't exceed your rack's maximum load—especially if you're using panniers, too
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
- Contains materials that meet the bluesign® criteria
Imported.
View the REI Co-op Junction Product LineView all REI Co-op Bike Trunk Bags| Best Use | Bike Commuting |
|---|---|
| Gear Capacity (L) | 16 liters |
| Gear Capacity (cu. in.) | 977 cubic inches |
| Material(s) | Exterior: 400-denier 100% recycled oxford nylon (bluesign approved); interior: 100% recycled polyester (bluesign approved) |
| Dimensions | 13.4 x 7.9 x 7.1 (W x H x D) inches |
| Weight | 1 lb. 7 oz. |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials From a Climate Label Certified brand |
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Great sturdy medium sized bag for daily riders
This is a great bike rack bag for many reasons. It is easily attached and removed from the rack with 4 velcro straps. There is plenty of internal space and a variety of small and medium pockets for different sized items. The outer zippered pocket is handy for items that are commonly used on your ride. I packed a few drinks on my 2 hour ride and they were still cold when I arrived to my destination. While the description doesn't state it, the insulation on the bag does offer some type of temperature control. I was able to mount this on my old Trek bike rack without any issues. You can see on the picture that my seat is a little too low and the bag didn't fit as well under it, but nevertheless, was still able to slide under and be secured. I was also able to couple this bag with my Timbuk2 pannier bags and while it wasn't a perfect fit, it was secured just fine. I've used this bag a few times on my ride to the range and the gym. It was easy to take off the rack and stylish enough to carry around on these different activities. And the reflective material is a safety plus. I will be using this bag on my daily rides and will reach for it as an alternative to my panniers.
It is a trunk for your bike
Outside: nice large zip pocket and reflective tape. Inside is 1 large zip pocket with a key clip inside, 1 mess end pocket and 4 nylon pockets. Totally functional bag. If I could change one thing I’d switch the quick-release buckles on one end so the bag could be clipped on the top and on the ends.
Very useful urban rear rack storage
Very useful bike rear rack storage. It fits exactly on the rear rack. The size is perfect to store groceries or a couple of takeout boxes. It is easy to mount and dismount with velcro straps. The bag being waterproof is a bonus.
Smart design, solid materials, good construction
Well designed & built, like you expect from REI. The gatemouth opening is easy to use with big items; straps/ buckles are well placed; internal pockets keep contents organized. Since it's not bike season now I'm using this as my commuter lunch tote. For this application it works great, with enough volume to handle my needs.
Good Quality Bag
Great bag - solid construction, spacious interior, lots of pockets. Easily attaches to my Ortlieb Quick rack and fits my Kryptonite chain lock and other essentials with room to spare. Great for morning rides to my climbing gym and saves me from having to bring a backpack.




