ART Dual components Aluminium staal ultralicht zelfreinigend achtertandwiel 8000 520 Amount of teeth:50 teeth Clean the handlebar and inspect Clean the handlebar and inspect for damage where the old throttle tube has been spinning on the bar if a ridge is present replace the handlebars Ultralight hard anodized rear sprocket margin:0pt 0pt 0pt 0pt background color:transparent