Description
Support your backpack. Keep wearing it.
Backbone 8.3 supports the bottom of your backpack behind the saddle while you continue wearing it. The bicycle carries the load, taking pressure off your shoulders without adding panniers or bulky side luggage.
When properly fitted for your backpack and riding position, the Backbone can support up to 100% of the backpack’s weight while keeping the load centered behind you.
Why riders choose Backbone 8.3
- Tool-free setup: A quick-release clamp installs and adjusts in minutes.
- Centered load: Your backpack stays behind the rider in a narrower profile than side-mounted luggage.
- Built for repeated use: A TIG-welded 6061-T6 aluminum frame combines strength with low weight.
- Durable finish: Anodized aluminum and dependable hardware are made for everyday riding and travel.
- Added visibility: A reflective decal helps the Backbone stand out at night.
Fit and specifications
- Standard 15-hole Backbone 8.3 platform
- Fits round seat posts 22–32 mm in diameter
- Requires about 2 inches of exposed seat post
- Works with commuter, school, hiking, courier, and messenger backpacks
- Product weight: 2 lb
- Product dimensions: 15 × 13 × 4 in
- Patent pending
Quick installation
- Choose the rubber insert that best fits your seat post and press it into the clamp.
- Place the clamp around the seat post with the Backbone tube angled upward.
- Close the clamp plate, tighten the quick-release handle, and lock it in place.
- Test the horizontal tube for movement and adjust the clamp before loading your backpack.
See the complete installation guide on How It Works, or visit Support for manuals and help.
Built from the road
BikeBackbone began during founder Adam Keen’s long-distance bicycle journey from the Chicago area toward Panama. A heavy hiking backpack created the problem; prototypes built along the route became the product. Read the full story.
Warranty
Backbone products include a 36-month limited warranty. Review the warranty details or contact Support if you need assistance.
