Polygon Strattos S7D

2026 RoadEndurance Manufacturer page

Last known price: $1,599

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 12 34–50t / 11–34t
Gear range: 455%
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XXS 151–161
XS 154–164
SM 162–170
MD 168–176
LG 174–182
XL 179–187
XXL 185–195

Components

12 of 19 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

carbon Not identified

Suspension

1 part

Fork

ACX ALL-ROUND UCI APPROVED Not identified

Drivetrain

6 parts

Bottom bracket
- Shimano BB-RS500-PB
BB-RS500-PB
Cassette
- Shimano 105 CS-R7101 12 speeds 11–34t
CS-R7101
Chain
- KMC
Crankset
- Shimano 105 FC-R7100 12 speeds 50/34t
FC-R7100
Rear derailleur
- Shimano 105 RD-R7100 12 speeds
RD-R7100RD-R7100-SS
Shifters
- Shimano 105 ST-R7120
ST-R7120

Brakes

3 parts

Brake levers
- Shimano 105 ST-R7120
ST-R7120
Brakes
- Shimano 105 BR-R7170
BR-R7170
Disc rotors
- TRP
TR-29

Wheels and tires

4 parts

Front hub

ALLOY THRU AXLE 12x100mm 24H SEALED BEARINGS 6-BOLTS Not identified
Rear hub

ALLOY THRU AXLE 12x142mm 24H SEALED BEARINGS 6-BOLTS Not identified
Rims

622-19 24H FOR TYRE 622-28/62 DISC TUBELESS READY Not identified
Tires
- Schwalbe One

Cockpit and contact points

4 parts

Handlebar
- Polygon
Headset

INTEGRATED (IS) SEALED BEARING FOR OS HEAD TUBE, IS 52/28.6 | IS 52/40 Not identified
Saddle

FLUX2, CR-MO ø 7mm Not identified
Seatpost
- Polygon

Sizes and geometry

7 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 387mm

Stack 534mm

Wheelbase 985mm

Head angle 73.0°

Seat angle 74.0°

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 Reported by the manufacturer

Complete manufacturer geometry table 7 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	372.9	382.5	383.4	386.9	389.8	391.5	402.8
Stackmm	493.2	494.7	510.7	533.9	557.7	583.8	612.4
Top tube lengthmm	505	515	525	540	555	570	590
Seat tube lengthmm	439.1	454.2	474.2	500	524.7	554.3	584.2
Head tube lengthmm	90	90	105	130	155	185	215
Head tube angle	71.5°	72°	72.5°	73°	73°	73°	73°
Seat tube angle	75°	75°	74.5°	74°	73.5°	73°	73°
Chainstay lengthmm	415	415	415	415	415	417	417
Wheelbasemm	969.7	975.6	977.3	984.9	995	1007.9	1027.8
Front centermm	566	572	573	580	590	600	620
Bottom bracket dropmm	72.5	72.5	72.5	70	70	67.5	67.5
Bottom bracket heightmm	271.5	271.5	271.5	274	274	276.5	276.5
Standover heightmm	717.13	729.43	748.69	775.85	801.17	832.25	862.17
Fork rakemm	45	45	45	45	45	45	45
Trailmm	66	63	60	57	57	57	57
Stack/reach ratio	1.32	1.29	1.33	1.38	1.43	1.49	1.52

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

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 12
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.0 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire width: 28c
Wheel material: Aluminum
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

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2026
Sample: 479 bicycles with this information
Coverage: 79.3% of the class

Highest gear

131.8 gear inches

This value is within the central range for this class.

Cohort: Road / Endurance Model year: 2026
Sample: 479 bicycles with this information
Coverage: 79.3% of the class

Shifting

Mechanical

327 of 604 bicycles with this information use electronic shifting.

Cohort: Road / Endurance Model year: 2026
Sample: 604 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 gear inches
Class reference (p10–p90): 26.6–139.2 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Endurance Model year: 2026
Lowest gear: 479 bicycles with this information, 79.3% of the class
Highest gear: 479 bicycles with this information, 79.3% 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 2026 builds
Specification	This bicycle Polygon Strattos S7D	Polygon Strattos 5	Polygon Strattos 6	Polygon Strattos 7	Polygon Strattos 8	Polygon Strattos C7
Frame
Frame material	Carbon	Aluminum	Carbon	Carbon	Carbon	Carbon
Drivetrain
Rear sprockets	12	11	11	12	12	12
Smallest sprocket	11	11	Not informed	11	11	11
Largest sprocket	34	36	Not informed	34	34	34
Lowest gear	29.0 in	27.4 in	Not informed	29.0 in	29.0 in	29.0 in
Highest gear	131.8 in	131.8 in	Not informed	131.8 in	131.8 in	131.8 in
Cockpit
Shifting	Mechanical	Mechanical	Mechanical	Mechanical	Electronic	Electronic
Derailleur hanger	Not informed	UDH	UDH	UDH	UDH	UDH
Other specifications
Bottom bracket standard	BB86/BB92	BSA	T47	T47	T47	Not informed
Wheel material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Tire clearance	Not informed	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Maximum tire width: 34c; Additional specification: Wheel kind: 700	Maximum tire width: 34c