Headset Size
1 1/8"
Seatpost Size
27mm
Top Tube Size
20.50
Original Colours
S9X00000 S0Y00000
Made in Taiwan.
Unconfirmed. Second digit in the serial indicates year of production. 1999 or 2000. Third digit in the examples above indicates production month - In a real serial X will be a letter A to E (Jan to May). In a real serial Y will be a letter F to L (Jun to Dec).
Bikes made in Taiwan usually had an 5-8 month production and shipping timeline before they were sold in bike shops around the world. Bikes welded in the later months of the year would normally be made for the following year.