CONCORD, N.C. — Clint Bowyer sent out a warning on Twitter to daredevil Nick Wallenda before his tightrope walk Saturday night at Charlotte Motor Speedway.

"Hey Nik Wallenda! This track doesn't exactly have a good track record with cables," Bowyer wrote.

Bowyer was referring to the Fox TV cable wires used to support cameras that fell on the track and caused damage to several cars during the last Sprint Cup race at CMS in May.

Wallenda had no such issues with cables though.

Wallenda and his sister, Lijana Wallenda, successfully completed a dual walk across a 460-foot wire 150 feet above the race track Saturday night. The siblings started on opposite ends, and crossed in the middle with Lijana crouched on one leg and Nik easing over the top of her.

"It was exciting to perform together again," said Nik Wallenda, who earned worldwide attention when he crossed the Little Colorado River Gorge and Niagara Falls. "We don't perform like this very often. We've never performed this high and this far apart before and this was the first time in many, many years."

This was the second straight year Wallenda has performed at CMS, but the first with his sister.

"It's always exciting to perform in front of race fans, for one, because they're such an outgoing audience," Wallenda said. "And to have them so quiet while we perform — there's a lot of respect there."