Polygon Helios A9 Di2

2026 RoadRace Manufacturer page

Polygon Helios A9 Di2, color Velvet Amber / Candy

Last known price: $6,249

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 36–52t / 11–34t
Gear range: 446%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XXXS 143–153
XXS 151–161
XS 154–164
SM 162–170
MD 168–176
LG 174–182
XL 179–187

Components

10 of 20 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

carbon Not identified

Suspension

1 part

Fork

ACX PERFORMANCE UCI APPROVED Not identified

Drivetrain

6 parts

Bottom bracket
- Token
Cassette
- Shimano Dura-Ace CS-R9200-12 12 speeds 11–34t
CS-R9200-12
Chain
- KMC
Crankset
- Shimano Dura-Ace FC-R9200-P 52/36t
FC-R9200FC-R9200P
Rear derailleur
- Shimano Dura-Ace RD-R9250 12 speeds
RD-R9250
Shifters
- Shimano Dura-Ace ST-R9270
ST-R9270

Brakes

3 parts

Wheels and tires

5 parts

Front hub

ALLOY THRU AXLE 12x100mm 20H SEALED BEARINGS CENTER LOCK Not identified
Rear hub

ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS CENTER LOCK Not identified
Rims

F: CARBON 622-22 20H FOR TYRE 622-28/62 DISC TUBELESS READY / R: CARBON 622-22 24H FOR TYRE 622-28/62 DISC TUBELESS READY Not identified
Spokes

F: STAINLESS DOUBLE BUTTED NDS:278mm DS:280mm / R: STAINLESS DOUBLE BUTTED NDS:272mm DS:274mm Not identified
Tires
- Pirelli

Cockpit and contact points

4 parts

Handlebar

LINC CARBON, W: 400mm (XXXS, XXS, XS) / 420mm (S, M) / 440mm (L, XL), BB: 31.8mm, R/D: -134.2 mm (XXXS, XXS, XS) / -138.2mm (S, M, L, XL), B/R: 92.5mm (XXXS, XXS, XS) / 89.7mm (S, M, L, XL) Not identified
Headset

INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6 | IS 52/40 Not identified
Saddle

LINC FLUX2, CR-MO ø 7mm Not identified
Seatpost

CARBON AERO, DxL: AERO 35 x 351mm Not identified

Sizes and geometry

7 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 390mm

Stack 523mm

Wheelbase 985mm

Head angle 72.3°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	370	375	385	390	400	405	420
Stackmm	493	503	511	523	533	551	571
Top tube lengthmm	502	513	529	540	556	570	598
Seat tube lengthmm	395	420	457	489	499	518	536
Head tube lengthmm	90	100	110	120	130	150	170
Head tube angle	71°	71.3°	71.5°	72.3°	72.5°	72.8°	73°
Seat tube angle	75°	74.7°	74.3°	74°	73.7°	73.3°	73°
Chainstay lengthmm	410	410	410	410	410	410	410
Wheelbasemm	969	976	988	985	996	1005	1024
Front centermm	572	579	590	586	597	606	624
Bottom bracket dropmm	78	78	75.5	73	73	71.5	71.5
Bottom bracket heightmm	266	266	268.5	271	271	272.5	272.5
Standover heightmm	662	685	720	752	761	780	799
Fork rakemm	51	52	51	46	45	46	45
Trailmm	62	59	59	59	59	56	56
Stack/reach ratio	1.33	1.34	1.33	1.34	1.33	1.36	1.36

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 30.7 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: T47
Tire width: 28c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

30.7 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 720 bicycles with this information
Coverage: 78.6% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2026
Sample: 720 bicycles with this information
Coverage: 78.6% of the class

Shifting

Electronic

632 of 913 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2026
Sample: 913 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 52.5 km/h

Total gear range 446%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 30.7–137.1 gear inches
Class reference (p10–p90): 27.4–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2026
Lowest gear: 720 bicycles with this information, 78.6% of the class
Highest gear: 720 bicycles with this information, 78.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2026 builds
Specification	This bicycle Polygon Helios A9 Di2	Polygon Helios A0	Polygon Helios A0 AXS	Polygon Helios A7	Polygon Helios A7 Di2	Polygon Helios A8
Drivetrain
Smallest chainring	36	35	35	36	36	36
Largest chainring	52	48	48	52	52	52
Smallest sprocket	11	10	10	11	11	11
Largest sprocket	34	33	33	34	34	34
Lowest gear	30.7 in	30.8 in	30.8 in	30.7 in	30.7 in	30.7 in
Highest gear	137.1 in	139.2 in	139.2 in	137.1 in	137.1 in	137.1 in
Cockpit
Derailleur hanger	Not informed	UDH	Not informed	UDH	Not informed	UDH
Other specifications
Bottom bracket standard	T47	Not informed	T47	Not informed	T47	Not informed
Tire width	28c	30c	30c	28c	28c	28c
Tire clearance	Not informed	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Not informed	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Not informed	Maximum tire width: 34c; Additional specification: Wheel kind: 700
Power meter	Not informed	Not informed	SRAM RED E1 48/35T POWER METERAdditional specification: Model display: Red AXSAdditional specification: Model id: red-axs	Not informed	Not informed	Not informed