Lowest1.13:1
Highest3.00:1
Total range267%
Velopedia Bicycle Archive
2025 Polygon Oosten 26
Original specifications: geometry for 1 published size.
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At a glance
Archive #900001902- Model year
- 2025
- Category
- Hybrid
- Original MSRP
- $519.00
- Sizes
- ALL SIZE
- Colors
- Brown, Pink, Red, Red / Brown / Pink
- Geometry
- 1 manufacturer size
- In this record
- 21 specifications · archived image · original MSRP · geometry
Original build21 specifications
Frameset
| Frame Construction | AL6 City Frame |
|---|---|
| Fork | Steel Fork |
| Fork Material | Steel |
Drivetrain
| Shifters | Shimano RV-400, 1X8 Revo Trigger |
|---|---|
| Rear Derailleur | Shimano Altus RD-M310DL |
| Crankset | Steel Crank, 36T |
| Bottom Bracket | Cartidge Bearing 68x122.5mm |
| Cassette | Shimano CS-HG200 12-32T |
| Chain | KMC Z-8.3 |
| Pedals | PP Pedal W/ Reflector |
Brakes
| Brakes | Alloy V-Brakes; Levers: Alloy Lever, Plastic Bracket |
|---|
Cockpit & Contact Points
| Headset | External CUP Threaded, ZS 34/28.6 | ZS 34/30 |
|---|---|
| Handlebar | ALLOY HANDLEBAR, W: 620mm, BB: 25.4mm, R/D: 112mm, B: 50degree |
| Stem | ALLOY QUIL STEM, EXT: 80mm, BB: 25.4mm, R/D: 30degree |
| Saddle | Selle Royal Ondina, Steel Ø 7mm |
| Seatpost | Alloy Seatpost, DXL: 27.2 X 250mm |
Wheels & Tires
| Hubs | F: ALLOY NUTx100mm 36H V-BRAKE ONLY / R: ALLOY NUTx135mm 36H V-BRAKE for Freewheel |
|---|---|
| Wheels | Alloy Double Wall, 36H |
| Rims | 590-20 36H for Tyre 590 |
| Front Tire | DELI 26"x1-3/8" |
| Rear Tire | DELI 26"x1-3/8" |
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Geometry
Frame measurements by size.
Frame diagram
Size
Measurement
Measurement
—
Select an available measurement to locate it on the frame.
All geometry measurements1 size · 13 measurements
| Measurement | ALL SIZE |
|---|---|
| Seat tube | 406 mm |
| Effective top tube | 565 mm |
| Head tube | 180 mm |
| Head-tube angle | 71° |
| Seat-tube angle | 71° |
| Actual seat-tube angle | 71° |
| Chainstay / rear center | 445 mm |
| Wheelbase | 1043 mm |
| Bottom-bracket drop | 37 mm |
| Bottom-bracket height | 295 mm |
| Reach | 366 mm |
| Stack | 578 mm |
| Standover height | 494 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
Speed unavailable: wheel or tire size is missing or unclear.
Add your rear tire size to calculate speedHow it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Try your current gearingChanged tires or gears? Calculate your setup.
Your changes apply to this calculation. The archived build stays unchanged.
Gearing results
| Measure | Original | Your setup |
|---|---|---|
| Lowest ratio | — | — |
| Highest ratio | — | — |
| Total range | — | — |
| Lowest-gear speed | — | — |
| Highest-gear speed | — | — |
Speeds are estimates. These calculations do not establish component compatibility or available tire clearance.
Parts & serviceability
Find replacement parts
KMC Z-8.3
Retailer offers
SRAM PC-830 Chain One Color, 8 Speed
Replacement option
ALLOY SEATPOST
DxL: 27.2 x 250mm
Retailer offers
Race Face Ride XC Seatpost Black, 27.2x375mm
Replacement option
More parts (3)Fewer parts
ALLOY V-BRAKES
Levers: ALLOY LEVER, PLASTIC BRACKET
SELLE ROYAL ONDINA
STEEL ø 7mm
SHIMANO ALTUS RD-M310DL
Based on the original build. Check fit and installed parts before ordering. Affiliate links may earn Velopedia a commission. As an Amazon Associate I earn from qualifying purchases.
Parts and service referenceQuick reference before buying parts
Archived specifications for reference. Check the fitted parts before ordering.
- Front tire
- DELI 26"x1-3/8"
- Rear tire
- DELI 26"x1-3/8"
- Seatpost diameter
- 27.2 mm
- Bottom bracket / shell
- CARTIDGE BEARING 68x122.5mm
Equipment inspection checks 10 checks based on 5 archived component groups Open equipment checksClose equipment checks
Checks selected from the archived equipment. Confirm what is fitted today. This is not a complete safety inspection; use the full inspection guide before test riding.
Full used-bike inspection guide →
Frame and fork
Inspect the frame and fork →Archived: Frame: AL6 CITY FRAME · Fork: STEEL FORK · Steel
Drivetrain
Check drivetrain wear →Archived: Shifters: SHIMANO RV-400, 1x8 REVO TRIGGER · Rear derailleur: SHIMANO ALTUS RD-M310DL · Crankset: STEEL CRANK, 36T · Bottom bracket: CARTIDGE BEARING 68x122.5mm · Cassette: SHIMANO CS-HG200 12-32T · Chain: KMC Z-8.3
Brakes
Inspect the brakes →Archived: Brakes: ALLOY V-BRAKES; Levers: ALLOY LEVER, PLASTIC BRACKET
Wheels and tires
Check wheels and tires →Archived: Wheels: ALLOY DOUBLE WALL, 36H · Rims: 590-20 36H FOR TYRE 590 · Hubs: F: ALLOY NUTx100mm 36H V-BRAKE ONLY / R: ALLOY NUTx135mm 36H V-BRAKE for Freewheel · Front tire: DELI 26"x1-3/8" · Rear tire: DELI 26"x1-3/8"
Controls and contact points
Archived: Headset: EXTERNAL CUP THREADED, ZS 34/28.6 | ZS 34/30 · Handlebar: ALLOY HANDLEBAR, W: 620mm, BB: 25.4mm, R/D: 112mm, B: 50degree · Stem: ALLOY QUIL STEM, EXT: 80mm, BB: 25.4mm, R/D: 30degree · Seatpost: ALLOY SEATPOST, DxL: 27.2 x 250mm · Saddle: SELLE ROYAL ONDINA, STEEL ø 7mm · Pedals: PP PEDAL W/ REFLECTOR
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.