Can I still use my Round Bars with your new towers? Raul Bonifacio Updated October 15, 2019 19:22 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 If I purchase round bars will they come with end caps? The CrossBars that Yakima recommended for my vehicle seem really long. Can I cut them down to length? RoundBar Dimensions Comments 0 comments Article is closed for comments.