The geometry chart below applies to all Giant Defy frames from the following:
- Years: 2021, 2022, 2023
- Models: Advanced Pro, Advanced
- Frame material: Carbon
| Frame Size | XS | S | M | ML | L | XL |
|---|---|---|---|---|---|---|
| Suggested Rider Height (cm) | 157 to 169 | 165 to 175 | 171 to 181 | 177 to 187 | 183 to 193 | 189 to 199 |
| Suggested Rider Height (ft) | 5’2″ to 5’7″ | 5’5″ to 5’9″ | 5’7″ to 5’11” | 5’10” to 6’2″ | 6’0″ to 6’4″ | 6’2″ to 6’6″ |
| Stack (mm) | 522 | 546 | 567 | 586 | 605 | 624 |
| Reach (mm) | 370 | 374 | 377 | 381 | 390 | 398 |
| Top Tube (mm) | 515 | 530 | 545 | 560 | 575 | 595 |
| Seat Tube (mm) | 410 | 445 | 480 | 515 | 535 | 565 |
| Seat Tube Angle | 74.5° | 74° | 73.5° | 73° | 73° | 72.5° |
| Head Tube (mm) | 120 | 140 | 160 | 185 | 205 | 225 |
| Head Tube Angle | 70.5° | 71.8° | 72.5° | 72.5° | 72.5° | 72.5° |
| Fork Offset (mm) | 50 | 50 | 50 | 50 | 50 | 50 |
| Fork Trail (mm) | 71.3 | 63.1 | 58.2 | 58.2 | 58.2 | 58 |
| Wheelbase (mm) | 995 | 995 | 998 | 1010 | 1025 | 1040 |
| Chainstay (mm) | 420 | 420 | 420 | 420 | 420 | 420 |
| BB Drop (mm) | 75 | 75 | 75 | 70 | 70 | 70 |
| Standover Height (mm) | 731 | 760 | 786 | 816 | 835 | 856 |
| Handlebar Width (mm) | 400 | 400 | 420 | 420 | 440 | 440 |
| Stem Length (mm) | 80 | 90 | 100 | 100 | 110 | 110 |
| Crank Length (mm) | 170 | 170 | 172.5 | 172.5 | 175 | 175 |
Read more about the frame geometry measurements here.
Source : Giant Bikes
Giant Defy Advanced vs others
Alex Lee is the founder and editor-at-large of Mr. Mamil. Coming from a professional engineering background, he breaks down technical cycling nuances into an easy-to-understand and digestible format here.
He has been riding road bikes actively for the past 12 years and started racing competitively in the senior category during the summer recently.