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Want to stack your RotopaX? Extensions are used when you want to stack containers on top of each other. When purchasing an extension, keep in mind that your extension size correlates with the container you will have on the base of your setup. The extensions are made of hardened anodized aluminum with B7 all thread for maximum strength.

Note: Locking pack mounts are not recommended for use with extensions.

Rotopax containers are designed to be mounted on any flat surface. The ingenious pax mount design enables you to use any pax mount with any of our containers. The pax mounts are all made of hardened anodized aluminum and B7 all thread for maximum strength.

Note: Be sure not to overtighten the pax mount as there is no need to crush the container, just tighten the mount until the container is snug.

• Use this Extension to stack any pack on top of a 1.75 Gallon pack
• Use the 3 Gallon Extension if stacking a 1.75 Gallon pack on top of a 3 Gallon pack

All AltRider rear luggage racks are pre drilled for installing RotopaX mounts.