The geometry chart below applies to all Polygon Helios frames from the following:
- Years: 2022, 2023
- Models: Polygon Helios A9X, A8X, A7X, A8, A7
- Frame material: Carbon
| Frame Size | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Suggested Rider Height (cm) | 144 to 154 | 154 to 164 | 162 to 170 | 168 to 176 | 174 to 181 | 180 to 187 |
| Suggested Rider Height (ft) | 4’9″ to 5’1″ | 5’1″ to 5’5″ | 5’4″ to 5’7″ | 5’6″ to 5’9″ | 5’9″ to 5’11” | 5’11” to 6’2″ |
| Stack (mm) | 505 | 520.21 | 535.2 | 550.4 | 564.7 | 580.8 |
| Reach (mm) | 370 | 375 | 380 | 385 | 390 | 395 |
| Top Tube, Effective (mm) | 505.31 | 517.31 | 530.42 | 543.04 | 555.14 | 569.25 |
| Seat Tube (mm) | 450 | 475 | 500 | 520 | 545 | 570 |
| Seat Tube Angle | 75º | 74.7º | 74.3º | 74º | 73.7º | 73.3º |
| Head Tube (mm) | 100 | 115 | 130 | 145 | 160 | 175 |
| Head Tube Angle | 71.5º | 71.8º | 72º | 72.3º | 72.3º | 72.8º |
| BB Height (mm) | 271 | 271 | 271 | 271 | 271 | 271 |
| BB Drop (mm) | 73 | 73 | 73 | 73 | 73 | 73 |
| Chainstay (mm) | 415 | 415 | 415 | 415 | 415 | 415 |
| Wheelbase (mm) | 968.42 | 975.82 | 983.9 | 991.1 | 1000.62 | 1005.8 |
| Standover Height (mm) | 715.04 | 739.4 | 763.21 | 780.8 | 802.52 | 824.28 |
Source : Polygon Bikes
Learn more about the frame geometry measurements here.