Oregon Revised Statutes Oregon Vehicle Code § 814.489

Evidence of violation of ORS 814.485 or 814.486 and evidence of lack of protective headgear shall not be admissible, applicable or effective to reduce the amount of damages or to constitute a defense to an action for damages brought by or on behalf of an injured bicyclist or bicycle passenger or the survivors of a deceased bicyclist or passenger if the bicyclist or passenger was injured or killed as a result in whole or in part of the fault of another.