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Today’s Deals2025 Polygon
HELIOS A9X ENTITY WR5
A carbon frame race bike with ultra high-end components and shimano dura-ace hydraulic disc brakes.
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Manufacturer Price
$6,249| Frame | Carbon |
|---|---|
| Fork | Carbon |
| Wheels | 700c Carbon |
| Drivetrain | 2 × 12 Electronic |
| Groupset | Dura-Ace Di2 |
| 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 Comparison4'11" – 5'4"
5'0" – 5'5"
5'3" – 5'7"
5'6" – 5'10"
5'8" – 6'0"
5'10" – 6'2"
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 |
|---|---|
| Fork | ACX PERFORMANCE UCI APPROVED |
| Bottom Bracket | Bottom Bracket Shimano KSMBB9241B For Road |
| Headset | INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE 52/28.6 | IS 52/40 |
| Handlebar | Vision Metron 5D ACR Integrated 400mm (XS, S) 420mm (M, L) 420mm (XL) |
| Saddle | Entity Flux2, Cr-Mo Rail |
| Seatpost | Carbon 35 x 337mm (XS) / 357mm (S,M,L & XL) Type: Rigid |
| Pedals | Flat Alloy W/ Replaceable Pin |
| Rear Derailleur | Shimano Dura Ace Di2 RD-R9250 12-Speed DA |
|---|---|
| Crank | Shimano Dura Ace FC-R9200-P 52-36t 170mm (XS,S,M) 172.5mm (L,XL) |
| Shifters | Shimano Dura Ace ST-R9270 Di2 12-Speed |
| Cassette | Shimano Dura Ace CS-R9200 12-Speed 11-34T |
| Chain | Shimano CN-M8100 12-Speed Quick-Link |
| Brakes | SHIMANO DURA-ACE BR-R9270 Type: Shimano Dura-Ace Hydraulic Disc |
| Brake Levers | SHIMANO DURA-ACE ST-R9270 |
| Rims | ENTITY WR5 DISC (50mm) W/ TUBELESS TAPE INSTALLED |
|---|---|
| Tires | SCHWALBE ONE ADDIX TLE 700x28C |
| Disc Rotors | SHIMANO DURA-ACE RT-MT900 F:160mm / R:140mm CENTER LOCK |
First added June 28
Last updated June 7