Fred if your Chinese is good enough, and you can find a local Jianshe Yamaha manager who knows his bikes, there is a good chance of being able to get some Sakura tires or better pattern/compound Cheng Shin Tire (CST) tires for your YBR125. Sakura are a medium level quality brand owned by Chengshin rubber of Taiwan http://translate.google.co.uk/transl...24%26bih%3D337, fear not, as Maxxis are another one of their name brands, but Maxxis tires are only available for cars or mountain bikes inside China. The tires that come stock on the YBR125 are cheap and long life durable, because this is what the Chinese commuter market wants. Many Chengshin (CST) branded tires can be pretty good, http://www.csttires.com/Motorcycle/Moto-Street.aspx although I'd always prefer Bridgestone, Pirelli or Michelin if I had a choice, I choice I haven't had yet in China.