| GT STS Frame | Head tube Angle | Seat Tube Angle | Top Tube Length | B/B Height | Standover Height | Chainstay Length | Wheel Base | B/B Width |
| 14.5" | 69.7' | 73.8' | 525cm | 301cm | 718cm | 424cm | 1040cm | 73cm |
| 16.0" | 69.7' | 73.8' | 545cm | 301cm | 733cm | 424cm | 1063cm | 73cm |
| 18.0" | 69.7' | 73.8' | 570cm | 301cm | 761cm | 424cm | 1080cm | 73cm |
| 19.0" | 69.7' | 73.8' | 585cm | 301cm | 771cm | 424cm | 1100cm | 73cm |
| 20.0" | 69.7' | 73.8' | 590cm | 301cm | 786cm | 424cm | 1111cm | 74cm |
