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Today’s Deals2024 Polygon
Helios A9X
A carbon frame race bike with ultra high-end components and shimano dura-ace hydraulic disc brakes.
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Manufacturer Price
$7,499| Weight | 17.0 lbs |
|---|---|
| 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.
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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.
Oct 2023 · Dave Rome
An incredibly well-priced performance-orientated aero road bike sold directly to consumers.
Incredible value
Well-mannered ride
Quick yet balanced handling
Shimano 105 Di2 group
Did I mention the incredible value?
Long reach isn’t for all
Adjusting stem height is tricky
Bars are real wide for an aero bike
No affordable option to change the handlebar
Tight tyre fit on rims
Out-of-box build could use a mechanic
Bartape.
| Frame | ACX Performance Carbon UCI Approved, Internal Cable Routing, Shimano KSMBB9241B Press Fit Bottom Bracket, 12x142mm Thru-Axle, Flat Mount Disc BB Standard: BB86/BB92, Press Fit Tire Clearance: 28c |
|---|---|
| Fork | ACX Performance Carbon UCI Approved, 12x100mm Thru-Axle, Flat Mount Disc |
| Bottom Bracket | BB86/BB92, press-fit |
| Stem | Vision Metron 5D ACR Integrated, 100mm Length (XS-S), 110mm Length (M-L), 120mm Length (XL), 6-Degree |
| Handlebar | Vision Metron 5D ACR Integrated, 400mm Width (XS-S), 420mm Width (M-L), 420mm (XL), 80mm Reach, 125mm Drop |
| Saddle | Entity Flux2 |
| Seatpost | Polygon Carbon Aero Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset Type: Rigid |
| Pedals | Not included |
| Rear Derailleur | Shimano Dura-Ace Di2 RD-R9250, 12-Speed |
|---|---|
| Front Derailleur | Shimano Dura-Ace Di2 FD-R9250, Braze-On |
| Crank | 52/36T |
| Power Meter | Shimano Dura-Ace FC-9200, HollowTech 2, 12-Speed, XS-M:170mm, L-XL:172.5mm, W/ Dura-Ace FC-R9200-P Power Meter (Optional) |
| Shifters | Shimano Dura-Ace Di2 ST-R9270, 12-Speed |
| Cassette | Shimano Dura-Ace CS-R9250, 12-Speed, 11-34T |
| Chain | Shimano CN-M8100, 12-Speed |
| Brakes | Front: Shimano Dura-Ace BR-R9270, Hydraulic Disc, 160mm Center Lock, Rear: Shimano Dura-Ace BR-R9270, Hydraulic Disc, 140mm Center Lock Type: Shimano Dura-Ace Hydraulic Disc |
| Rims | Front: Dura Ace C60 (60mm) carbon deep-section wheels or Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed, Rear: Dura Ace C60 (60mm) carbon deep-section wheels or Entity WR5 Carbon Disc, 900g, 21mm Internal Width, 50mm Depth, Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed |
|---|---|
| Front Hub | Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed / Shimano C60 Dura-Ace Carbon Disc, 751g, 21mm Internal Width, 60mm Depth, 24H, Tubeless Tape Installed |
| Rear Hub | Entity WR5 Carbon Disc, 900g, 21mm Internal Width, 50mm Depth, Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed / Shimano C60 Dura-Ace Carbon Disc, 858g, 21mm Internal Width, 60mm Depth, 24H, Tubeless Tape Installed |
| Tires | Schwalbe One Addix TLE, 700x28C, Tubeless Ready |
First added September 18
Last updated March 21
Not listed for 72 days