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2023 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

$6,249
Weight17.0 lbs  
FrameCarbon
ForkCarbon
Wheels700c Carbon
Drivetrain2 × 12 Electronic
GroupsetDura-Ace Di2
Power MeterDura-Ace
BrakesShimano Dura-Ace Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Rider Position
relaxedaggressive
Terrain
smoothrugged
Helios A9X
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Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

41 mph

Helios A9X

40 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

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Reviews
Escape Collective
2024 Polygon Helios A7X road bike review: Aero on a budget - Escape Collective

Oct 2023 · Dave Rome

An incredibly well-priced performance-orientated aero road bike sold directly to consumers.

Highs
  • Incredible value

  • Well-mannered ride

  • Quick yet balanced handling

  • Shimano 105 Di2 group

  • Did I mention the incredible value?

Lows
  • 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.

Read Review

Geometry
Specs
Build
Frame

ACX Performance UCI Approved, Internal Cable Routing, Shimano KSMBB9241B Press Fit Bottom Bracket, 12x142mm Thru-Axle, Flat Mount Disc

BB StandardBB86/BB92, Press Fit

Fork

ACX Performance 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, 3K Black Finish

Saddle

Entity Flux2

Seatpost

Polygon Carbon Aero Seatpost, 35x337mm (XS), 357mm (S-XL), 20mm Adjustable Offset

TypeRigid

Groupset
Rear Derailleur

Shimano Dura-Ace Di2 RD-R9250, 12-Speed

Front Derailleur

Shimano Dura-Ace Di2 FD-R9250, Braze-On

Crank

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)

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

TypeShimano Dura-Ace Hydraulic Disc

Wheels
Rims

Front: Entity WR5 Carbon Disc, 769g, 21mm Internal Width, 50mm Depth, Entity D791SB-12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed, Rear: Entity WR5 Carbon Disc, 900g, 21mm Internal Width, 50mm Depth, Novatec D792SB-X12 Hub, 24H, Stainless Straight Pull Butte Spokes, Tubeless Tape Installed

Tires

Front: Schwalbe One Addix TLE, 700x28C, Rear: Schwalbe One Addix TLE, 700x28C

Rider Notes
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First added November 21

Last updated July 13

Not listed for 688 days