Could someone advise me a shop in Shanghai whith a good amount of accessories for motorbikes? I'm looking for levers (clutch and brake) and a new horn for my 650NK. I heard there's a good one in Gubei area but not sure about the exact location though...

Here's the kind of clutch I'm looking for:
http://item.taobao.com/item.htm?spm=...id=18685251842

If you can advise me a reliable horn system: I'm all hears.