Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Carbon -
Wheels 700c -
Groupset Ultegra Di2 -
Suspension Rigid -
Drivetrain 2 × 12 Electronic -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
XXS
144cm - 155cm
XS
153cm - 164cm
SM
162cm - 170cm
MD
168cm - 176cm
LG
174cm - 182cm
XL
179cm - 187cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
carbon
Suspension Fork
ACX PERFORMANCE UCI APPROVED, TAPER 1-1/8" TO 1-1/2"
Rear Shock
-
Drivetrain
Rear Derailleur
SHIMANO ULTEGRA Di2 RD-R8150 DIRECT ATTACH
Front Derailleur
Shimano Ultegra Di2 FD-R8150, Braze-On
Shift Levers
SHIMANO ULTEGRA Di2 ST-R8170, 2x12-SPEED DCL
Cassette
SHIMANO ULTEGRA CS-R8100-12 11-34T
Crank
SHIMANO ULTEGRA FC-R8100 52/36T, CRANK ARM: 170mm (XS, S, M) / 172.5mm (L, XL)
Bottom Bracket
SHIMANO SM-BB92-41B, PRESSFIT BB86
Chain
SHIMANO CN-M8100 12-SPEED
Pedals
-
Wheels
Front Hub
F: ALLOY THRU AXLE 12x100mm 24H SEALED BEARINGS CENTER LOCK / R: ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS CENTER LOCK
Rear Hub
F: ALLOY THRU AXLE 12x100mm 24H SEALED BEARINGS CENTER LOCK / R: ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS CENTER LOCK
Rims
CARBON 622-19 24H FOR TYRE 622-28/62 DISC TUBELESS READY
Spokes
STAINLESS STRAIGHT PULL BUTTE
Tires
SCHWALBE ONE ADDIX TLE 700x28C
Brakes
Brakes
SHIMANO ULTEGRA HYDRAULIC DISC
Brake Levers
SHIMANO ULTEGRA HYDRAULIC DISC
Cockpit
Stem
Vision Metron 5D ACR Integrated
Handlebar
VISION METRON 5D ACR INTEGRATED, W: 400mm (XS, S) / 420mm (M, L) / 420mm (XL), BB: INTEGRATED, R/D: 125mm, B/R: 80mm
Headset
INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6 | IS 52/40
Seat
Saddle
ENTITY FLUX2, CR-MO ø 7mm
Seatpost
CARBON, AERO 35 x 337mm (XS) / 357mm (S, M, L, XL)
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | XXS | XS | SM | MD | LG | XL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.37 mm | 1.39 mm | 1.41 mm | 1.43 mm | 1.45 mm | 1.47 mm |
| Bottom Bracket Height | 271 mm | 271 mm | 271 mm | 271 mm | 271 mm | 271 mm |
| Front Center | 565 mm | 572 mm | 580 mm | 587 mm | 597 mm | 602 mm |
| Rake | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm | 43 mm |
| Trail | 67 mm | 65 mm | 64 mm | 62 mm | 62 mm | 59 mm |
| Stack | 504 mm | 519.21 mm | 534.2 mm | 549.4 mm | 563.7 mm | 579.8 mm |
| Reach | 369 mm | 374 mm | 379 mm | 384 mm | 389 mm | 394 mm |
| Top Tube Length | 504.31 mm | 516.31 mm | 529.42 mm | 542.04 mm | 554.14 mm | 568.25 mm |
| Seat Tube Angle | 75 ° | 74.7 ° | 74.3 ° | 74 ° | 73.7 ° | 73.3 ° |
| Seat Tube Length | 450 mm | 475 mm | 500 mm | 520 mm | 545 mm | 570 mm |
| Head Tube Angle | 71.5 ° | 71.8 ° | 72 ° | 72.3 ° | 72.3 ° | 72.8 ° |
| Head Tube Length | 100 mm | 115 mm | 130 mm | 145 mm | 160 mm | 175 mm |
| Chainstay Length | 414 mm | 414 mm | 414 mm | 414 mm | 414 mm | 414 mm |
| Wheelbase | 967 mm | 974 mm | 982 mm | 990 mm | 999 mm | 1004 mm |
| Bottom Bracket Drop | 73 mm | 73 mm | 73 mm | 73 mm | 73 mm | 73 mm |
| Standover Height | 714 mm | 738 mm | 762 mm | 779 mm | 801 mm | 823 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 144 cm | 153 cm | 162 cm | 168 cm | 174 cm | 179 cm |
| Rider Max Height | 155 cm | 164 cm | 170 cm | 176 cm | 182 cm | 187 cm |
About this model
HELIOS A8X completes the Polygon Helios model. There are 33 bikes that carry this model name. You can get a glimpse at all models from 2023, by clicking on this link.
Model range prices
Polygon HELIOS A7 2023 is the cheapest bike model and costs 2799$. Polygon HELIOS A9X C60 POWERMETER 2023 is the most expensive one and costs 7499$.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Race bikes
If you want to purchase a solid Race bike, it is important to know that the average cost is 3350$. However, paying less money than this amount doesn’t mean that you couldn’t get a great Race bike. To sum up, when you purchase your bike, make sure to check if it has reviews, and also do some components research.
When Polygon released this model in 2023, its price was 4699$. If we compare this with the average Race bike cost we notice that the price is 40.27% higher.
HELIOS A8X components
Fork material
HELIOS A8X has a carbon fork, so, it won’t add up to much weight to your bike. However, the price you have to pay for a carbon fork is considerably higher.
Wheels
When it comes to wheels, the HELIOS A8X bike is equipped with the 700c carbon model. There is no doubt, that 700c wheels are very popular on all road bike models. However, while they give you great speed and control, these wheels are not so bump-friendly.
Brakes
Nothing is more important on a bike than its ability to brake properly. Polygon HELIOS A8X is equipped with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, these are ideal for anyone.
Sizes
This bike is available in 6 sizes. They vary from 144 cm – 187 cm (4.72 ft – 6.14 ft). In short, you can easily find one that suits you.