<ul><li>Aircraft quality 6061 aluminum tubing for uncompromised strength</li><li>Works well with most panniers and trunk bags, but works GREAT with Blackburn's Interlock compatible bags</li><li>Blackburn Fit System mounts perfectly with 26", 700c or 29"wheels, disc compatible and will work with most brake or frame mounts</li><li>Light and reflector mounting loop</li></ul><br><br>Now you can feel more secure leaving your bike unattended. Blackburn's patent pending system allows Blackburn Interlock Bags to integrate seamlessly with the Blackburn Interlock Rear Rack, securing the bag to the rack and the contents in the bag with a single key. Whether it's a multi-day tour or you're running errands around down, this unique system provides security and theft protection for storage on your bike.