What Size Seat Tube Does the Hidden Storage Container Fit?

Our 31mm Bicycle Seat Tube Storage Container is designed to fit inside your bike's seat tube for hidden, secure storage.

Dimensions

• Outer Diameter (OD): 1 inch (26mm)
• Product Name: 31mm refers to the internal storage capacity

Will It Fit My Bike?

Your seat tube's inner diameter must be 26mm or larger to accommodate this storage container.

How to Measure

1. Remove your seat post
2. Measure the inner diameter of your seat tube opening
3. If the inner diameter is 26mm (1") or greater, this container will fit

Important Compatibility Note

If your seat tube inner diameter is smaller than 26mm (for example, 25.27mm), this storage container will not fit and cannot be modified to work. Please measure carefully before ordering.

What It's For

This hidden container is perfect for storing:

• Emergency cash or cards
• Small tools or spare parts
• Keys
• Any small valuables you want to keep concealed

The container slides into your seat tube and stays hidden beneath your seat post—out of sight and secure.