Delta Adjustable Crossbar Top Tube Frame Adapter: Black. The Crossbar Substitute works as a top tube with non-traditional style frame designs for easier rack mounting.

For use with "hang-on" type car racks

Quick-release clamps allow for quick and easy adjustment

Thick rubber coating protects bikes finish

Weight limit is 50lbs

Distance limit from seat post to stem: max: 32.25" min: 23"