<p>The present invention relates to an exhaust gas arrangement for a motorcycle having an engine, particularly multiple cylinder engine, and an exhaust pipe assembly comprising at least a front exhaust pipe extending from the engine to an exhaust chamber and a rear exhaust pipe extending from said exhaust chamber to discharge exhaust gas therefrom, and an oxygen sensor for detecting the oxygen contents of the exhaust gas, wherein the oxygen sensor is disposed at the exhaust gas chamber extending upwardly and/or laterally therefrom. <IMAGE></p>
