International Standard 13232 has been developed and internationally approved for the purpose of providing common research methods for assessing the feasibility of protective devices which might be fitted to motorcycles and which are intended to reduce injuries to riders resulting from car impact. The Standard represents the current international consensus of relevant experts from 10 participating nations reached through the committee process. The Standard involves agreed methods for: description of a standardized motorcycle accident population; a specialized motorcyclist crash dummy; measurement methods; injury indices; full scale test procedures and conditions; and methods for calibrating and using computer simulations to predict performance across the population of accidents. The Standard provides a practical and specific means for evaluating the comparative effects of proposed protective devices. Results of applying the Standard to a full scale test evaluation of an example proposed UKDS motorcycle leg protector device are presented and discussed, along with suggestions for possible future refinements of the Standard.