The ShowDown will all Yakima bars, Core, JetStream and Round Bars.
For other after market bars here are the maximum sizes:
- Square bars up to 1.25" (31.8mm)
- Rectangular bars up to 1.25 x 3 " (31.8mm x 76mm)
If you have additional questions please contact us here, or by phone at 888-925-4621 M-F from 7 to 4 PT