Polygon Helios LT9X

2019 RoadRace Manufacturer page

Last known price: $5,299

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 36–52t / 11–28t
Gear range: 368%
Weight: 6.22 kg 13.7 lb · Reference configuration not specified
Frame: Carbon
Brakes: Rim brake

Sizes

Size guide

46cm
50cm
53cm
56cm
58cm
60cm

The manufacturer did not publish rider heights for these sizes.

Components

13 of 15 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

ACX PERFORMANCE ROAD, 130MM O.L.D. INTERNAL ROUTE, Di2 READY Not identified

Suspension

2 parts

Fork

ACX PERFORMANCE ROAD, CARBON TAPER STEERER Not identified
Rear shock

None

Drivetrain

6 parts

Brakes

1 part

Brakes
- Shimano Dura-Ace BR-R9100
BR-R9100

Wheels and tires

2 parts

Rims
- Mavic
Tires
- Mavic

Cockpit and contact points

5 parts

Sizes and geometry

6 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 53cm

Table

Reach 388mm

Stack 547mm

Wheelbase 986mm

Head angle 73.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 6 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	376.5	382.5	387.9	396.7	404.4	410.3
Stackmm	507.2	524.9	547.3	568.2	577.7	610.7
Top tube lengthmm	520	535	550	565	581	600
Seat tube lengthmm	465	500	530	560	580	600
Head tube lengthmm	110	125	145	165	176	200
Head tube angle	71°	72°	73°	73.5°	73.5°	73.5°
Seat tube angle	74.2°	73.8°	73.5°	73.5°	73°	72.5°
Chainstay lengthmm	405	410	410	410	410	410
Wheelbasemm	974.6	982.7	985.8	996	1006.7	1020
Front centermm	579	582	585	596	606	619
Bottom bracket dropmm	68	68	68	68	68	68
Bottom bracket heightmm	271.5	271.5	271.5	271.5	271.5	271.5
Standover heightmm	710.6	732.8	760.2	786.7	802.6	822.6
Fork rakemm	45	45	45	45	45	43
Trailmm	68	62	56	53	53	55
Stack/reach ratio	1.35	1.37	1.41	1.43	1.43	1.49

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Fork material: Carbon
Bicycle weight: 6.22 kg

13.7 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 36
Largest chainring: 52
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 28
Lowest gear: 37.3 in
Highest gear: 137.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Electronic

Additional specifications

Bottom bracket standard: BB86/BB92
Tire width: 25c
Wheel material: Carbon
Wheel size: 700c

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Lowest gear

37.3 gear inches

This value is above the central range for this class.

Cohort: Road / Race Model year: 2019
Sample: 507 bicycles with this information
Coverage: 83.9% of the class

Highest gear

137.1 gear inches

This value is within the central range for this class.

Cohort: Road / Race Model year: 2019
Sample: 507 bicycles with this information
Coverage: 83.9% of the class

Shifting

Electronic

283 of 604 bicycles with this information use electronic shifting.

Cohort: Road / Race Model year: 2019
Sample: 604 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 14.3 km/h
Highest gear: 52.5 km/h

Total gear range 368%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 37.3–137.1 gear inches
Class reference (p10–p90): 30.8–137.1 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Race Model year: 2019
Lowest gear: 507 bicycles with this information, 83.9% of the class
Highest gear: 507 bicycles with this information, 83.9% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2019 builds

Differences across 2019 builds
Specification	This bicycle Polygon Helios LT9X	Polygon Helios LT8	Polygon Helios LT9X eTap
Frame
Bicycle weight	6.22 kg	Not informed	6.19 kg
Drivetrain
Smallest chainring	36	Not informed	36
Largest chainring	52	Not informed	52
Lowest gear	37.3 in	Not informed	37.3 in
Highest gear	137.1 in	Not informed	137.1 in
Cockpit
Shifting	Electronic	Mechanical	Electronic
Other specifications
Bottom bracket standard	BB86/BB92	BB86/BB92	Not informed
Tire width	25c	28c	25c
Wheel material	Carbon	Aluminum	Carbon