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Stack and reach

Some tubes use estimated defaults where OEM values were missing.

Measurement	PolygonHelios 2020	PolygonHelios 2019
Stackmm	542	542
Reachmm	392	392
Head tube angle°	73.2	73.2
Seat tube angle°	73.5	73.5
Chainstaymm	405	405
Wheelbasemm	988	988
BB dropmm	68	68
BB heightmm	—	—
Standovermm	—	—

Relaxed/Aggressiveness

Add a close match

Giant Propel Advanced 2022Near Polygon Helios · XS · 507 mm / 380 mmAdd to this compare
Giant Propel Advanced 2023Near Polygon Helios · XS · 507 mm / 380 mmAdd to this compare
Giant Propel Advanced 2024Near Polygon Helios · XS · 507 mm / 380 mmAdd to this compare

Cockpit for the selected size

Part	Helios M	Helios M
Stem	100 mm	100 mm
Bar	420 mm	420 mm
Crank	172.5 mm	172.5 mm

Reviews

Polygon Helios

POLYGON HELIOS: In the Relentless Pursuit of SpeedYouTube · 2019
Are consumer-direct aero bikes any good? Polygon Helios A8X review. The Ride with Ben Delaney•29K views · 1:35:30. Go to channel Not Just Bikes · Why Nobody ...

Polygon Helios

POLYGON HELIOS: In the Relentless Pursuit of SpeedYouTube · 2019
Are consumer-direct aero bikes any good? Polygon Helios A8X review. The Ride with Ben Delaney•29K views · 1:35:30. Go to channel Not Just Bikes · Why Nobody ...