Boom! Check the redesigned frame on the 2000 GT Mach One - All kinds of room with a longer top tube. GT 3-pc. forged cranks and head tube gussets provide incredible strength. GT 4130 Cr-Mo frame, machined head tube + BB. 20.5 inch top tube length. GT Low profile Cr-Mo fork. New GT forged cr-mo 3-pc crankset. Weinmann ZAC-X aluminum rims. New GT allay chain tensioners.
Headset Size
1 1/8"
Seatpost Size
26mm
Top Tube Size
20.5
Original Colours
S9X00000 S0Y00000
Made in Taiwan.
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.