This is the smaller version of the container that mounts on the B-RAIL System. Designed to fit on your bike’s top tube (if you have mounting points!), it allows you to easily and quickly access items, even while riding. It’s perfect for storing snacks or other small essentials.

For best results, use a 3 mm × 40 mm pin (DA024 from the Bambu store). If you prefer, you can also print the small pin in plastic — it’s included in the printing file.

Update: Horizontal Container Gen2 is now available!
A new improved version with more sizes, lighter design, no hardware required, and better overall functionality. Check it out! 🚲

About the B-RAIL System:
The B-RAIL System uses a mounting rail designed to fit any standard bottle cage mounts on your bike. It lets you attach a wide range of accessories and swap them out in seconds. The rear latch makes clipping on and off accessories quick and effortless.

Here is the link to print the mounting rail:

[https://makerworld.com/en/models/1790757-official-b-rail-mounting-rail#profileId-1908428](https://makerworld.com/en/models/1790757-official-b-rail-mounting-rail#profileId-1908428)

Please share improvement suggestions or accessory ideas in the comments.

I hope you enjoy your new small container!