1999 Dyno Detour. Dyno flatland frame with full 4130 CrMo tubing, Pac-Man dropouts and welded-on detangler cable stops. CrMo threadless GT freestyle fork, 1-1/4-inch legs, Pac-Man dropouts. New GT CNC'ed one-piece chainwheel. New GT aluminum platform pedals. GT Mohawk hubs w/Weinman 2AC-X 48H rims. GT Airbag tires. Dyno 4130 CrMo freestyle handlebar with gussets. GT freestyle saddle w/bashguards. GT micro adjust double-bolt seatpost. GT Kraton freestyle grips. Front and rear 38mm axle pegs. Colors available: CP, Brown Sugar.
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Made in Taiwan.
The second digit in the serial indicates year of production (1998 or 1999). X in the serial indicates production Month (E to L - May to Dec). Y in the serial indicates production Month (A to D - Jan to April).
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.
For more detail on what the serial number means on your mid school GT BMX, check out our easy-to-follow serial number guide.