My buddy did some searching and found that they actually SPLIT the original JiaoJi Rd MotoBike Parts market - see http://www.motorfans.com.cn/bbs/f_75.htm

1) #4333 HuTai Lu - Called Shagnhai Gmall (this is the one mentioned in above post)

2) #1681 Gu Lang Lu (near ZhenNan Lu) -- this one is actually supposed to be bigger & better overall compared to the Gmall...

and yes, that seat is truly "PIMP".