A 58-year-old Dunedin man is in hospital with serious injuries after crashing his motorcycle near Naseby about noon on Saturday.
The man, who flown by helicopter to Dunedin Hospital, was on his way to the 26th annual Vincent County Rally at Galloway, near Alexandra.
Senior Constable Steve Burke, of Ranfurly, said police were still investigating the cause of the crash.
No other vehicles were involved and there were no witnesses, he said.
Members of the Naseby and Ranfurly volunteer fire brigades attended the crash, as well as police and ambulance crews.
It happened on a 100kmh section of road near the Naseby golf course.
Snr Const Burke said the man's injuries were serious, although he was expected to live.
More than 1400 people attended the two-night rally, which is annually organised by the Otago branch of the Bikers Rights Organisation of New Zealand (Bronz).
Bronz president Ron McKay, of Dunedin, said that, other than the Naseby crash, there were no incidents associated with the event.
The crowd was well-behaved, he said.
"It was absolutely fantastic. The weather was brilliant, the crowd was great, the music was great, and nothing major happened.
"We had 1450 happy, well-behaved people," Mr McKay said.
Motorcyclists started arriving at the rally on Friday, and all but about 20 had left by 9.30am yesterday. rosie.manins@odt.co.nz