Looking for used motorcycle shops. On the cheap end. Taipei area. I am sure they are all over, but I wouldn't know where to begin looking.
You can take a look at this website:https://www.8891.com.tw/usedauto-moto.html
or google "Taipei 台北" + "used二手" + "motorcycle機車"
Here's some of the results:http://www.verymoto.com.tw/map_content.php?s_id=002↑ This is a chain store
http://class.ruten.com.tw/user/index00.php?s=slin511020↑ Address: 103台北市大同區延平北路三段73-3號Tel： 02 2599 3945