Shop · The Backbone 8.3 lineup

Find your Backbone.

Support your backpack. Choose a complete setup or upgrade your Backbone.

Find your fit

Find your starting point.

Quick fit checkTick each measurement you’ve confirmed. Unsure? Leave it unchecked.

Fit is individual. Read the instructions for your model before installing or riding. Ask us about your bike and bag if any measurement is uncertain.

Your selected models

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Every setup needs a cylindrical 22–32 mm seatpost and at least 2 inches of exposed seatpost. Check your model’s full fit instructions before riding.

Complete setups

Each includes a Backbone support, seatpost clamp, and platform.

New here? See how it works →

Considering Mini? Check its extra saddle-clearance requirement →

Already have a Backbone?

These are add-ons, sold separately from the complete support.

Let’s find your setup.

Tell us about your bike and bag. A photo helps, too.

Ask a fit question →