The Run to the Cascades Motorcycle Rally was shutdown on Saturday after a confrontation between The Hells Angels and rival motorcycle clubs The Mongols and The Jokers.
The Hells Angles had a booth at the event at which they were selling Hells Angels's merchandice.
Around 150 members of the rival groups showed up to inform the Hell's Angels that they had "15 minutes to leave" according to police.
When the Hells Angels left, they made it clear that they were planning on getting re-enforcements to come back and confront the Mongols and Jokers.
Captain Brian McNoughton of the Redmond police said that at that point they had to shut down the event to protect the public.
According to McNoughton, Bend Police, State Police and officers from the Deschutes Country Sherrif's department helped resolve the sitution without any actual violence.