We won the Best Large Handlebar Bag by Ultimate Gear List!
The Jumbo Jammer is a high-volume, rack-less, and weatherproof handlebar bag. This massive bag is the largest in our Jammer line and is perfect for bike-packing, road touring, and...
Reviews
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Jumbo Jammer Side Carry
This bag is dope!
I bought my JJammer to pack and carry groceries on my normal bike. Quickly I've found many other ways to use it!
If you take a hardy shoulder strap and attach to the d rings, it becomes a Jumbo farmers market produce bag.
My most common use is a side bag on my Dawgs cargo bike. I like to keep the weight up front on the bike so moving bags upfront is key. Front loading helps to maneuver the bike around tight spaces when on foot. Chap's box has loops holes on each side of the box. Take the carry straps on JJammer and move them to wider than wide mode and it should fit!
Finally I have found a small Cattle Dawg can fit in JJammer. Still studying how this can be useful in the future...
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Cody · January 6, 2025
Great product. The quality of the bag is amazing.
Bryce · August 25, 2023
I love the versatility of this bag. It can fold down very small, but has enough room for my lunch and two winter layers. Even without a rack it stays locked in place due to using five straps secure it to the bars.
It seems to be very well made, but that will put that to the test since I use it daily for my commute.