A Beloit man suffered a serious head injury after a motorcycle crash in Sauk County Friday night, according to a release.
Just after 5:50 p.m., Sauk County officials were notified of a single-motorcycle crash on County Road K at the intersection with Bass Road in the town of Winfield, officials said.
Rob S. Nordeng, 45, of Beloit, was going north on County Road K with a group and failed to negotiate the curve south of Giles Road, according to the release. Nordeng went onto the west shoulder of County Road K, across Bass Road, the motorcycle flipped and he was thrown from the bike.
Nordeng as transported to the Reedsburg Area Medical Center for a serious head injury, officials said. He was not wearing a helmet.
Officials said he was later transported to UW Hospital by Med Flight.
Speed may have been a factor in the crash, but authorities believe alcohol was not.
The crash is still under investigation.