1999 GT Show. U.S.A. made 6061-T6 aluminum alloy GT flatland frame. Threadless GT flatland fork with super thick 1-1/4 inch legs, Pac-Man dropouts. GT CNC'ed Flycutter chainwheel. GT Mohawk 48-spoke high-flange front hub. Taska freecoaster rear hub. GT flatland CrMo tapered handlebar. Micro adjust aluminum GT seatpost. GT Airbag freestyle tires. Deep socket pegs. U.S.A. made GT flatland Piston stem.
Headset Size
1 1/8"
Seatpost Size
Unknown
Top Tube Size
18.44
Original Colours
MM980000 MM990000
Made in USA.
Third and fourth digits in the serial indicate year of production. 1998 or 1999. MM in the example above indicates production month
Bikes made in USA usually had an 4-6 month production and shipping timeline before they were sold in bike shops around the world. Bikes welded in the second half of the year would normally be made for the following year.
For more detail on what the serial number means on your mid school GT BMX, check out our easy-to-follow serial number guide.