Velopedia Bicycle Archive
2026 Polygon Strattos S2
Road bicycle from the Velopedia specification archive.
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What Velopedia knows
- Model year
- 2026
- Category
- Road
- Original MSRP
- $599.00
- Sizes
- S, M, L
- Colors
- Black Blue, Red Black
- Geometry
- 3 manufacturer sizes · Geometry context
- Record coverage
- 22 preserved details · 2 archived images · original MSRP · preserved geometry
- Archive ID
- 900001805
Model history 1 other year
Frameset
| Frame Construction | ALX All-Round |
|---|---|
| Frame Material | Aluminum |
| Fork | ACX All-Round |
| Fork Material | Carbon Fiber |
Drivetrain
| Shifters | Shimano Claris ST-R2000 2X8 Speed |
|---|---|
| Rear Derailleur | Shimano Claris RD-R2000-GS Direct Attach |
| Crankset | Prowheel 50/34T |
| Bottom Bracket | BSA Threaded 68mm for 2-Piece Crankset |
| Cassette | Shimano CS-HG31 8-speed 11-30T |
| Chain | KMC Z-8.3 |
| Pedals | Alloy Cage & Body W/ Reflector |
Brakes
| Brakes | Tektro R315 Caliper Brake; Levers: Shimano Claris ST-R2000 |
|---|
Cockpit & Contact Points
| Headset | FSA Sealed Bearing for Tapered Head Tube, IS 42/28.6 | IS 52/40 |
|---|---|
| Handlebar | Polygon Sport Alloy, W: 400mm (S, M) / 420mm (L), BB: 31.8mm, R/D: 124mm, B/R: 80mm |
| Stem | POLYGON SPORT ALLOY, EXT: 90mm (S) / 100mm (M, L), BB: 31.8mm, R/D: 7degree |
| Saddle | Black Saddle, Steel Ø 7mm |
| Seatpost | Polygon Sport Alloy, DXL: 27.2 X 350mm |
Wheels & Tires
| Hubs | F: Alloy HUB QR 9X100mm 28H / R: Alloy HUB QR 10x130mm 28H for Casette Sprocket |
|---|---|
| Wheels | C04 Alloy Double Wall Wheels |
| Rims | Alloy Double Wall H: 29mm W: 17mm 28H for Tyre 622-25/54 Tubeless Ready |
| Front Tire | Performance Tire 700x28C |
| Rear Tire | Performance Tire 700x28C |
Size-specific frame data
Geometry
Manufacturer-published geometry normalized for consistent archival comparison. Effective top tube and reach remain separate measurements because they describe different aspects of fit.
| Measurement | S | M | L |
|---|---|---|---|
| Seat tube | 470 mm | 500 mm | 520 mm |
| Effective top tube | 525 mm | 540 mm | 555 mm |
| Head tube | 105 mm | 130 mm | 155 mm |
| Head-tube angle | 72.5° | 73° | 73° |
| Seat-tube angle | 74.5° | 74° | 73.5° |
| Actual seat-tube angle | 74.5° | 74° | 73.5° |
| Chainstay / rear center | 415 mm | 415 mm | 415 mm |
| Wheelbase | 977.3 mm | 984.8 mm | 995 mm |
| Bottom-bracket drop | 72.5 mm | 70 mm | 70 mm |
| Bottom-bracket height | 272 mm | 274.5 mm | 274.5 mm |
| Reach | 383.5 mm | 387.1 mm | 390 mm |
| Stack | 510.3 mm | 533.3 mm | 557.2 mm |
| Standover height | 715.7 mm | 746.5 mm | 767.1 mm |
Geometry source: Polygon first-party metric geometry table ↗ Measurements can vary by configuration, wheel size, or flip-chip position where noted by the manufacturer.
Geometry tools
Analyze a published size
S geometry
Archive context: The head angle of 72.5° sits toward the steeper end. Its stack of 510.3 mm sits toward the lower end. Its wheelbase of 977.3 mm sits somewhat shorter than typical.
Compared with 78 distinct road geometries in the Small-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze S geometry M geometry
Archive context: Its stack of 533.3 mm sits toward the lower end. The head angle of 73° sits somewhat steeper than typical. Its wheelbase of 984.8 mm sits somewhat shorter than typical.
Compared with 78 distinct road geometries in the Medium-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze M geometry L geometry
Archive context: Its stack of 557.2 mm sits somewhat lower than typical. Its wheelbase of 995 mm sits somewhat shorter than typical. Its bottom-bracket drop of 70 mm sits somewhat shallower than typical.
Compared with 67 distinct road geometries in the Large-equivalent size cohort from model years 2024–2027 in the Velopedia archive.Want to go deeper?Open this exact published size and configuration in the Velopedia Geometry Analyzer, then complete any measurements the manufacturer did not provide.
Analyze L geometry Parts & serviceability
Find replacement parts
ChainKMC Z-8.3Exact archived model
CassetteShimano CS-HG31 8-speed 11-30TExact archived model
Brake padsTektro R315 Caliper BrakeBrake model identified — verify pad shape
More qualified parts (3)
Rear derailleurShimano Claris RD-R2000-GS Direct AttachExact archived model
ShiftersShimano Claris ST-R2000 2X8 SpeedExact archived model
Seatpost27.2 mm seatpostPublished diameter — verify length and setback
Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases. Commercial relationships do not influence Archive specifications or analysis.
Used-bike inspection
If you’re buying this bike used
Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.
Follow the full used-bike inspection order →- FrameLook closely for dents and hairline cracks around welds, the head tube and bottom-bracket area. Cosmetic scratches matter less than a change in shape or a crack line.Inspect the frame and fork →
- BrakesInspect pad condition, cable movement and the rim sidewalls or brake tracks for wear. A concave or heavily worn braking surface can mean the wheel also needs replacement.Inspect the brakes →
- DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 8-speed system.Check drivetrain wear →
- Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads. If it is set up tubeless, confirm both tires hold pressure and ask when the sealant was last refreshed.Check wheels and tires →
- Bottom bracketTurn the cranks slowly, feel for rough bearings and check for side-to-side play. Creaking under load deserves investigation but does not identify the source by itself.Inspect the bottom bracket and shell →
Bike-specific inspection checklist 20 checks based on 5 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2026 Polygon Strattos S2 · Road · Published sizes: S, M, L
Frame and fork
Inspect the frame and fork →Archived: Frame: ALX ALL-ROUND · Fork: ACX ALL-ROUND · Carbon Fiber
Drivetrain
Check drivetrain wear →Archived: Shifters: SHIMANO CLARIS ST-R2000 2x8 SPEED · Rear derailleur: SHIMANO CLARIS RD-R2000-GS DIRECT ATTACH · Crankset: PROWHEEL 50/34T · Bottom bracket: BSA THREADED 68mm FOR 2-PIECE CRANKSET · Cassette: SHIMANO CS-HG31 8-SPEED 11-30T · Chain: KMC Z-8.3
Brakes
Inspect the brakes →Archived: Brakes: TEKTRO R315 CALIPER BRAKE; Levers: SHIMANO CLARIS ST-R2000
Wheels and tires
Check wheels and tires →Archived: Wheels: C04 ALLOY DOUBLE WALL WHEELS · Rims: ALLOY DOUBLE WALL H: 29mm W: 17mm 28H FOR TYRE 622-25/54 TUBELESS READY · Hubs: F: ALLOY HUB QR 9x100mm 28H / R: ALLOY HUB QR 10x130mm 28H FOR CASETTE SPROCKET · Front tire: PERFORMANCE TIRE 700x28C · Rear tire: PERFORMANCE TIRE 700x28C
Controls and contact points
Archived: Headset: FSA SEALED BEARING FOR TAPERED HEAD TUBE, IS 42/28.6 | IS 52/40 · Handlebar: POLYGON SPORT ALLOY, W: 400mm (S, M) / 420mm (L), BB: 31.8mm, R/D: 124mm, B/R: 80mm · Stem: POLYGON SPORT ALLOY, EXT: 90mm (S) / 100mm (M, L), BB: 31.8mm, R/D: 7degree · Seatpost: POLYGON SPORT ALLOY, DxL: 27.2 x 350mm · Saddle: BLACK SADDLE, STEEL ø 7mm · Pedals: ALLOY CAGE & BODY W/ REFLECTOR
Before and during the test ride
Follow the full used-bike inspection order →Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.