We are in a gas shortage here,but there is one station that carries 93 octane leaded gas-around here lots of old car collectors who need leaded. Is was the only 93 octane available. I have used in past on other bikes but they and did not have O2 sensors, computer, catalytic . Searching the web saw one race manuf say using leaded in a engine w/ 02 sensor will cause premature failure of O2 sensor? Btw cat is deleted so it can't harm that.