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Today’s Deals2025 Polygon
HELIOS A9 Di2 POWERMETER
A carbon frame race bike with ultra high-end components and shimano dura-ace hydraulic disc brakes.
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Manufacturer Price
$6,999| Frame | Carbon |
|---|---|
| Fork | Carbon |
| Wheels | 700c Carbon |
| Drivetrain | 2 × 12 Electronic |
| Groupset | Dura-Ace Di2 |
| Power Meter | Dura-Ace |
| Brakes | Shimano Dura-Ace Hydraulic Disc |
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full HELIOS model range
View Comparison4'8" – 5'1"
4'11" – 5'4"
5'0" – 5'5"
5'3" – 5'7"
5'6" – 5'10"
5'8" – 6'0"
5'10" – 6'2"
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
Jun 2025 · Alvin Holbrook
The upated Polygon Helios A road bike cuts 150 grams, adds SRAM UDH and a threaded bottom, and an aim toward improved livability.
May 2025 · Alex Hunt
Polygon’s Helios A undercuts the big brands and claims to offer all-round race performance. Can it deliver on both price and ride?
Undercuts big brands on price
34 mm tyre clearance for versatility
Ability to swap between proprietary aero seatpost and standard 27.2 mm round post
Potential for greater compliance and comfort with round seatpost
Brand seemingly unsure how to define the bike (race or endurance)
Frame geometry remains fixed, limiting transformation into a true endurance bike
| Frame | carbon BB Standard: T47, Threaded Color: Velvet Amber / Candy |
|---|---|
| Fork | ACX PERFORMANCE UCI APPROVED |
| Bottom Bracket | TOKEN T47 85.5 FOR 24mm SPINDLE |
| Headset | INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6 | IS 52/40 |
| 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) |
| Saddle | LINC FLUX2, CR-MO ø 7mm |
| Seatpost | CARBON AERO, DxL: AERO 35 x 351mm Type: Rigid |
| Rear Derailleur | SHIMANO DURA-ACE Di2 RD-R9250 DIRECT ATTACH |
|---|---|
| Crank | SHIMANO DURA-ACE FC-R9200P 52/36T POWER METER |
| Power Meter | SHIMANO DURA-ACE FC-R9200P 52/36T POWER METER |
| Shifters | SHIMANO DURA-ACE Di2 ST-R9270, 2x12-SPEED |
| Cassette | SHIMANO DURA-ACE CS-R9200-12 11-34T |
| Chain | KMC X12 EPT 12-SPEED |
| Brakes | SHIMANO DURA-ACE HYDRAULIC DISC Type: Shimano Dura-Ace Hydraulic Disc |
| Brake Levers | SHIMANO DURA-ACE ST-R9270 |
| 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 |
|---|---|
| Spokes | F: STAINLESS DOUBLE BUTTED NDS:278mm DS:280mm / R: STAINLESS DOUBLE BUTTED NDS:272mm DS:274mm |
| Front Hub | ALLOY THRU AXLE 12x100mm 20H SEALED BEARINGS CENTER LOCK |
| Rear Hub | ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS CENTER LOCK |
| Tires | PIRELLI PZERO ROAD TLR 700x28C |
| Disc Rotors | SHIMANO DURA-ACE CL900 F:160mm / R:140mm CENTER LOCK |
First added June 1
Last updated June 1