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Backcountry 40L Duffle/Pack

This moto-duffle does it all: it's a duffle, a backpack, and a quick-stash spot during the day. It's a way to keep your wet jacket separate from your dry sleeping bag. It serves as a clean food prep surface next to the campfire and a convenient tool tray for roadside field repairs. Pair it with our Backcountry Cinch Straps for rock-solid attachment to your bike. The Backcountry Duffle is available in two sizes, a 40L version and a 30L version.

People have been strapping all kinds of miscellaneous duffles to the back of their bikes since motorcycles were invented. Do a quick google search for ‘waterproof motorcycle duffle’ and you’ll see what I mean. The same basic welded seam waterproof roll-top duffle is presented a hundred times over, with different logos. It turns out that when you start from scratch and ask the question ‘how should an ADV duffle function’ you end up with something that looks and functions a lot different.


With the Backcountry Duffle we wanted to design a motorcycle bag from the ground up, instead of starting with a kayak/rafting drybag. Two things jumped out at us right away. First, we hated having to unpack the entire back of the bike just to put something in or take it out. If you picture a traditional roll-top duffle, the straps that connect it to the bike are going over the opening, which means that you have to undo the straps to get inside. Plus, because the bag is sitting on the back of the bike, by the time you unroll the opening it is too high to see inside. So you take it off the bike and set it on the ground. If you’re getting in and out of the bag several times a day this starts to get pretty annoying.


Second, traditional single-layer drybag duffles have a very limited lifespan. There are so many things that can cause them to fail. Campfire sparks, abrasion from a crash, abrasion from the rack it sits on, heat from the exhaust, cracks from sun damage, etc. As soon as anything happens to the bag, it’s not waterproof anymore. And if that happens in the middle of a trip it sucks.


We came up with the idea of a bag that’s actually two bags – an inner waterproof bag and an outer abrasion-proof bag – to solve that problem. Then we made it a double-ended roll top instead of a top-loader, so you can get things in and out without unstrapping it from the bike. Then we added a beavertail on top of that, so if you need to stash your jacket, or wet/dirty items that you don’t want inside the drybag, these things can be stored externally without getting inside the duffle at all.


Then we added backpack straps. Riding 50+ miles on dirt is no big deal on an adventure bike, but if you break down and find yourself hiking out, it’s a long friggin way man. Having a comfortable backpack is key. That was the original idea behind the backpack straps, but it turns out it’s also super handy for getting everything into (or up to) a hotel room in a single trip. When you’re traveling internationally, sometimes it’s not ok to leave half your stuff on the bike while you take the other half inside. With the BC 30/40, put the duffle on your back, grab a pannier in each hand, and you’re mobile. Plus the straps make it a great airline carry-on for fly-in trips or general travel.


Inside the beavertails there's a mesh pocket for wet/dry items (like a toothbrush), a document pocket which works great for maps, or for your bike documents and passport. The document pocket is especially helpful at border crossings where you have to stop at multiple customs offices on both sides of the border. Remove the document pocket, take it inside the customs office with you, then when you're done put it back inside the beavertail and ride over to the next office. That way you can collect all the country specific paperwork in a specific spot. Also under the beavertail there's a special tent pole pocket so you can split your tent into its various components, making it so much easier to pack. The tent pole pocket also works great for a camp chair, fuel bottles, a fishing pole, etc.


There are two things that take some getting used to on this duffle. First, the materials are really thick, which means that rolling/unrolling the roll-top feels a little cumbersome at first if you’re used to thinner kayak drybags or stuff sacks. The materials loosen up with time, have no fear. Second, compared to a top-loader, the double ended roll-top has a narrower throat. So when you’re in your tent, or in your hotel room, sorting through the stuff inside is not as easy as it would be with a top-loader. We make top-loaders too, check out our Scout 25/60 duffle if that’s the way you’re leaning. 


The Backcountry Duffle also includes a separate 20L Drysak bag, which can be used to keep dirty/wet items (like shoes or towels) separate from your other belongings. 

Want to protect your gear from thieves? Add our Steelcore Locking Straps. The Backcountry Duffle requires one 6' strap. Mounting instructions can be found in this video.

Connection Strap Note: For pavement and graded road riding, virtually any kind of connection strap will work to attach this duffle to the bike. For rough, ungraded terrain or for long-distance, multi-month trips, we highly recommend the Backcountry Cinch Strap, which was designed specifically for this bag and this kind of travel. Whatever strap you choose, if you will be riding offroad, please avoid bungy cords, stretchable elastic straps, or straps with plastic side-release buckles. Even a simple cam buckle strap (like this one by DaKine) is better than elastic.

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Easy on/off mounting
Stash Spots
100% Waterproof
Molle Expandability

Features

  • 1. MOLLE expandability
  • 2. 2 bag system – Tough bag outside. Dry bag inside.
  • 3. Beavertail stash-spot for extra storage and expansion
  • 4. Double ended roll top – access from BOTH sides
  • 5. Deployable backpack straps
  • 6. Tent pole pocket – keep those tent poles on quick draw!
  • 7. Removable map/document pocket
  • 8. Mesh pockets for keeping small items handy
Product Specs
  • 40 Liter capacity
  • Length: 21-26” main body – can be extended significantly with roll tops!)
  • Width: 16"
  • Height: 10" (can be extended with beavertail)
  • Weight: Approx 6 lbs
  • Construction + Materials
  • Outer Shell Materials: Ballistic Nylon
  • Inner Dry Bag Materials: 100%
  • waterproof 22 oz PVC with welded seam construction
  • D Rings: Aluminum rather than plastic to withstand abuse
  • Top Panel: 22oz PVC for easy washing, extra water resistance, and abrasion protection
  • Beavertail: Ballistic Nylon – providing extreme abrasion resistance
  • Tent Pole Pocket: 22oz PVC
  • Kit Includes
  • Backcountry 40L Duffle
  • 20L Drysak
  • HIGHLY RECOMMENDED 
ACCESSORY PRODUCTS:
    4L MOLLE, NOMAD TANK BAG, STEELCORE LOCKING STRAPS, BC CINCH STRAPS

    We needed this.

    Product Creation at Mosko is an effort born of necessity. Everyone on our team rides – and time on the trail translates to an innovative, always improving product line. Crafting gear that will outperform in even the most harsh riding conditions means we make no compromise, ever.

    “It doesn't get any better than these duffle bags. High quality, great features, and will last a lifetime. I have previously had most of the other brands of duffles and different tail bags and would never go back!!! Would buy again!”

    – Arthur, 2018

    In The Wild

    Customer Reviews

    Based on 361 reviews
    96%
    (346)
    3%
    (10)
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    (1)
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    1%
    (4)
    D
    D.D.
    Solid materials

    The materials used are top quality. I like the ability to get to my equipment from both ends of the bag. the ability to change the bags dimensions by differing the number of rolls is nice. I wish the beaver tale was slightly longer. If the bag continues to perform well I’ll consider more MM products.

    T
    T.R.C.
    New to me Bike, Same 40L

    Just joined the KTM Club so my 2 year old 40L is making the switch with me, it still looks brand new after two years of abuse. “NO ISSUES Whatsoever” with any of the straps or quality of material.

    R
    R.W.
    This is beyond a duffle!!!!!!

    I just used the Backcountry 40L Duffle/Pack this week on a 4 day trip and it was a dream to work out of. I have been using a waterproof duffle in the past which has worked well but was just a duffle. The 40L Duffle has so many benefits beyond just being a duffle which made it a true adventure bike addition. The tent pole pocket I used to put my shoes in.. this way they were easy and quick access for when we got into camp. The beaver tail flaps allowed me to expand the bag to put my bagged trash into when leaving camp. Then when I got to a trash can it was handy and easy to get to. At first I thought the end load duffle wouldn’t work well since I had been using a top load duffle for so long. Well I was pleasantly surprised how easy it was to use the end load. Plus, it was nice turning it on end and sliding the stuff into the bag and having it pack nicely using it’s own weight. One small feature that you wouldn’t notice just looking at the photos on the website that I loved… the two easy grip handles to pick up the bag. It’s a small feature, but one that I noticed every time I picked up the bag. The waterproof double layer feature of the bag is brilliant! The first two days I just rolled the ends together, but then we ran into rain… I opened up the ends, rolled the waterproof inner bag and fasten it and then rolled up the outer bag… there is no way water was getting into the bag. Like most all the other Mosko products, this goes beyond the norm and you notice it at first use!!!!!!!

    Y
    Y.
    Utterly impressed and grateful

    Recently, I purchased the Backcountry 35 liter pannier kit along with the 30L BC duffle. Being a backpack / duffle connoisseur, I could go on for days ranting about the quality of this ADV bike specific luggage. From the craftsmanship to the features to the versatility; I can’t say I have ever been this impressed. Nothing has been overlooked from seam to buckle.. Mosko Moto (in my opinion) is truly a rare breed in this day and age that distinguishes themselves through hard work, probably a lot of R&D hours and $, and ultimately products that simply work when you need it most. As someone much wiser than myself once said, “investing in quality initially will save much more in the long run.” I am beyond stoked with the gear. Thanks Mosko

    G
    G.P.
    Backcountry 40L Duffle/Pack!

    Great Luggage, they thought of everything with this product. Much easier to use then my previous set up and waterproof, which is necessary riding here in Washington.

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