Retrospec Bike Rack Cross-Bar Top Tube Adjustable Adapter, Black,

Top tube adapter adds a top tube for carrying step-through, suspension, and other non-conventional bike frames Designed for use with hitch and trunk mounted bicycle carries For Bicycles with a measurement of 18"-28" stem-to-seat post Easy installation - no assembly or tools required MAX WEIGHT: Maximum bicycles weight 45lbs. Not for use with E-Bikes.