150/70-B17 69V REAR TYRE. Make the most of your classic bike with the Michelin Road Classic tyres! An innovative compound mix incorporating Silica Rain Technology (SRT), combined with Bias-belted technology offers riders significant. Performance improvements compared to previous generations. 50% more wet grip than the previous generation. 50% more cornering stability and 40% more straight-line stability. Than the previous generation. If the reason for return is due to a fault in any way picking mistake, wrong part in packet, faulty etc. Then please send us a message to see how we can rectify this for you.