Q. Will 140-150/70 R17 fit for Xtreme 200S?

Hero Xtreme 200S gets a 130/70-17 rear tyre. Moreover, you may have 140/70 R17 tyre installed at the rear but going for a even bigger tyre then this would not be a feasible idea. Manufacturers do leave some space for customers if they want to install wider tyres. The ideal maximum calculated upgrade that can be done without upsetting the bikes riding dynamics is around 3% of the original size of the wheel rim. Any upgrade above this will result in a noticeable drop in fuel efficiency and compromise on ride and handling. For more details, we would suggest you to get in touch with the nearest authorized service center. Follow the link and select your desired city for service centers.