The 1986 GT Pro Series. If you're serious about your racing, this is the machine for you. And this year's Pro Series is better than ever. Every component on the Pro Series is the highest level possible. GT Chromoly Pro Bars. GT Sealed Bearing Hubs. GT Stem. SR Turbox Cranks. GT/Epoch Headset. Ukia 7Z Alloy Rims. GT Tires. SR Sealed Bearing Bottom Bracket. Izumi Chain. Suntour Freewheel and A'me Grips. All these killer components on a 100% Chromoly pre-polished, race proven GT Frame and Fork. The same frame set that GT built its name on. Available in GT Blue, White, Green, Lavender, Pink, and GT Show Chrome.
Headset Size
1"
Seatpost Size
22.2
Top Tube Size
Unknown
Original Colours
G5XX0000 G6XX0000
Made in Japan/Taiwan.
The second digit in the serial indicates year of production. 1985 or 1986. XX in the example above indicates production month.
Bikes made in Overseas 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.