Adjustable Crossbar Top Tube Frame Adapter: Black Ground control Replacement 11t and 13t cogs

Replacement 11t and 13t cogs for microSHIFT Advent X 10-Speed cassette

Double and single needle heavy duty stitching

Ideal for use 5 minutes before training or competition

DK Impact Foam displaces hard impact and protects central back

Same chassis as the PS series

Adjustable Crossbar Top Tube Frame Adapter: Black Ground control Replacement 11t and 13t cogsThe Crossbar Substitute works as a top tube for easier rack mounting for use with hang on type car racks and unconventional frames. For use with "hang on" type car racks Quick release clamps allow for quick and easy adjustment Thick rubber coating protects bike's finish Weight limit is 50lbs Distance limit from seat post to stem: max: 32. 25", min: 23"