If you have any of the following types of bikes with a sloping Top Tube (Top Tube that is not parallel / level to the ground) ;
- Kids bikes
- Step through women frame
- Full Suspension
- Compact frame
Or, that you can not get to set level on the rack you will need to use our TubeTop adapter. The TubeTop is designed to allow the bike to sit level on our hitch and strap racks. Here is a link to how to use the adapter.
The TubeTop will fit a top tube range of 14" to 30"