Geometry ?
Polygon Helios A 2026 geometry in sizes XXXS–XL: stack 493–571 mm, reach 370–420 mm, head angle 71–73°.
| XXXS | XXS | XS | S | M | L | XL | |
|---|---|---|---|---|---|---|---|
| Stack | 493 mm | 503 mm | 511 mm | 523 mm | 533 mm | 551 mm | 571 mm |
| Reach | 370 mm | 375 mm | 385 mm | 390 mm | 400 mm | 405 mm | 420 mm |
| Head angle | 71° | 71.3° | 71.5° | 72.3° | 72.5° | 72.8° | 73° |
| Seat angle | 75° | 74.7° | 74.3° | 74° | 73.7° | 73.3° | 73° |
| Seat tube (c-t) | 395 mm | 420 mm | 457 mm | 489 mm | 499 mm | 518 mm | 536 mm |
| Head tube | 90 mm | 100 mm | 110 mm | 120 mm | 130 mm | 150 mm | 170 mm |
| Top tube (effective) | 502 mm | 513 mm | 529 mm | 540 mm | 556 mm | 570 mm | 598 mm |
| BB drop | 78 mm | 78 mm | 75.5 mm | 73 mm | 73 mm | 71.5 mm | 71.5 mm |
| Chainstay | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 969 mm | 976 mm | 988 mm | 985 mm | 996 mm | 1005 mm | 1024 mm |
| Standover | 662 mm | 685 mm | 720 mm | 752 mm | 761 mm | 780 mm | 799 mm |
| Stock build by size | |||||||
| Stem | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm | 120 mm | 120 mm |
| Stem angle | −7.5° | −7.5° | −7.5° | −7.5° | −7.5° | −7.5° | −7.5° |
| Bar width | 400 mm | 400 mm | 400 mm | 420 mm | 420 mm | 440 mm | 440 mm |
Source: polygonbikes.com, checked 1 Nov 2026 · bar position: worked out from published data
Older model years in the archive: Polygon Helios A 2023
Stock build
Helios A0 AXS ≈ €8,279
- Groupset
- SRAM Red AXS E1 2×12
- Shifters
- SRAM Red AXS E1
- Cranks
- SRAM Red E1 48/35T Power Meter
- Stem
- Carbon, −7.5°
- Handlebar
- LINC Carbon
- Seatpost
- Carbon Aero, 35×351 mm
- Saddle
- Fizik Vento Antares R3, Kium 7 mm
- List price
- US$8,999 (polygonbikes.com, 1 Nov 2026)
Source: polygonbikes.com, checked 1 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size XXXS (stack 493 / reach 370 mm).
Stack and reach within 12 mm of size XXS (stack 503 / reach 375 mm).
Stack and reach within 12 mm of size XS (stack 511 / reach 385 mm).
Stack and reach within 12 mm of size S (stack 523 / reach 390 mm).
Stack and reach within 12 mm of size M (stack 533 / reach 400 mm).
Stack and reach within 12 mm of size L (stack 551 / reach 405 mm).
Stack and reach within 12 mm of size XL (stack 571 / reach 420 mm).
Spotted a mistake or a missing build? Let me know.