Can I still use my Round Bars with your new towers? Raul Bonifacio Updated January 29, 2020 20:46 Follow Absolutely. You will need to purchase the Round Bar Adapter, part number 8003536, these run $30 for a set of 4. For additional help contact us here, or by phone at 888-925-4621 during business hours Related articles CrossBar Options Rusted Crossbars RoundBar Dimensions Do end caps ship with round bars? The CrossBars that Yakima recommended for my vehicle seem really long. Can I cut them down to length? Comments 0 comments Article is closed for comments.