Strattos S8X
Polygon
Race
Strattos S8X is a carbon race road bike (2025), from Polygon, part of the Strattos family. Rider-wise, it fits riders who want a sporty road feel without a full race fit, with a sporty riding position, while being best matched to paved roads. Metric-wise, it stands out for strong value-for-money versus many similar bikes, an aero-leaning setup that still keeps some versatility, and balanced, versatile speed for everyday riding. The main trade-off is a firmer ride feel than comfort-first options. This summary is a starting point—compare this bike on MatchBikes.com with similar bikes.
6.8
Rating

+6
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Score Summary
Performance
6.3
Value
9.9
Fit
5.9
Performance
Built for speed and efficiency
Speed
7.5
High
Climbing Efficiency
5.5
All-Rounder
Aerodynamics
7.8
Aero-Enhanced
Fit
Dialed-in Fit & Comfort
Riding Position
7.0
Sporty
Fit Flexibility
6.7
Moderately Adjustable
Ride Comfort
3.0
Firm
Value
Value for Money
9.9
Exceptional Value
Surface Range
Road OnlySpecifications
General
Brand
Polygon
Model
Strattos S8X
Year
2025
Price
$3,199
Weight
8.21 kg
Category
Road
Sub Category
Race
Groupset
Ultegra, Ultegra Di2
Frame
Frame
ACX Carbon Uci Approved, Internally Routed, Pressfit BB86, 12x142mm
Suspension Fork
Full Carbon, Taper 1-1/8" To 1-1/2", Flat Mount Disc Brake
Suspension Type
Rigid
Drivetrain
Shift Levers
Shimano Ultegra Di2 ST-R8170, 2x12-Speed Dual Control Lever
Rear Derailleur
Shimano Ultegra Di2 RD-R8150 Direct Attach
Front Derailleur
Shimano Ultegra Di2 FD-R8150 Braze-On
Cassette
Shimano Ultegra CS-R8101, 11-34T
Crank
Shimano Ultegra FC-R8100
Bottom Bracket
BB86/BB92, press-fit
Chain
KMC X-12
Wheels
Front Hub
Novatec D791SB-CL, 12x100mm, Straight Pull Spokes, 24H
Rear Hub
Novatec D792SB-CL-X12, 12x142mm, Straight Pull Spokes, 24H
Rims
Novatec R3, Carbon, 38mm Depth, 15mm Inner, Tubeless Ready*
Tires
Schwalbe One, Addix, Raceguard, Microskin, 700x28C, Tubeless ready*
Brakes
Brake Type
Hydraulic Disc
Brake Description
Front: Shimano Ultegra BR-R8170 Hydraulic Disc, 160mm RT-CL800 Rotor, Center Lock, Rear: Shimano Ultegra BR-R8170 Hydraulic Disc, 140mm RT-CL800 Rotor, Center Lock
Cockpit
Stem
Entity Xpert Alloy, 31.8mm, 10°
Handlebar
Entity Xpert Alloy, 31.8mm, 125mm Drop, 70mm Reach
Seat
Saddle
Entity Flux2, Cr-Mo Ø 7mm
Seatpost
Entity Xpert Carbon, 27.2 x 350mm, 15mm, Integrated Shape W/ Bolt
Geometry
| Measurement | XS | SM | MD | LG | XL | XXL |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.292 mm | 1.331 mm | 1.38 mm | 1.431 mm | 1.49 mm | 1.519 mm |
| Bottom Bracket Height | 271.5 mm | 271.5 mm | 274 mm | 274 mm | 277 mm | 277 mm |
| Front Center | 572 mm | 573 mm | 580 mm | 590 mm | 600 mm | 620 mm |
| Rake | 45 mm | 44 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Trail | 62 mm | 60 mm | 56 mm | 56 mm | 56 mm | 56 mm |
| Stack | 495 mm | 511 mm | 534 mm | 558 mm | 584 mm | 612 mm |
| Reach | 383 mm | 384 mm | 387 mm | 390 mm | 392 mm | 403 mm |
| Top Tube Length | 515 mm | 525 mm | 540 mm | 555 mm | 570 mm | 590 mm |
| Seat Tube Angle | 75 ° | 74.5 ° | 74 ° | 73.5 ° | 73 ° | 73 ° |
| Seat Tube Length | 454 mm | 474 mm | 500 mm | 525 mm | 554 mm | 584 mm |
| Head Tube Angle | 72 ° | 72.5 ° | 73 ° | 73 ° | 73 ° | 73 ° |
| Head Tube Length | 90 mm | 105 mm | 130 mm | 155 mm | 185 mm | 215 mm |
| Chainstay Length | 415 mm | 415 mm | 415 mm | 415 mm | 417 mm | 417 mm |
| Wheelbase | 976 mm | 977 mm | 985 mm | 995 mm | 1008 mm | 1028 mm |
| Bottom Bracket Drop | 72 mm | 72 mm | 70 mm | 70 mm | 67 mm | 67 mm |
| Standover Height | 729 mm | 749 mm | 776 mm | 801 mm | 832 mm | 862 mm |
| Wheels | 700 | 700 | 700 | 700 | 700 | 700 |
| Rider Min Height | 158 cm | 165 cm | 169 cm | 177 cm | 183 cm | 186 cm |
| Rider Max Height | 167 cm | 173 cm | 180 cm | 186 cm | 191 cm | 194 cm |




























































