Lowest1.41:1
Highest4.36:1
Total range309%
Estimated speed At 90 RPM
Lowest gear
Highest gear
Rear tire: 20×2.
Velopedia Bicycle Archive
2025 Polygon Zeta Velo
Original specifications: geometry for 1 published size.
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At a glance
Archive #900001906- Model year
- 2025
- Category
- City & Commuter
- Original MSRP
- $499.00
- Sizes
- One Size
- Colors
- Blue, Cream
- Geometry
- 1 manufacturer size
- In this record
- 21 specifications · archived image · original MSRP · geometry
Original build21 specifications
Frameset
| Frame Construction | AL6 Minivelo Frame |
|---|---|
| Fork | Alloy Rigid Fork |
| Fork Material | Aluminum |
Drivetrain
| Shifters | Shimano Tiagra SL-4700, 1X10-Speed Rapidfire |
|---|---|
| Rear Derailleur | Shimano Tiagra RD-4700 Direct Attach |
| Crankset | Prowheel Ounce 48T |
| Bottom Bracket | BSA Threaded for 2-Piece Crankset |
| Cassette | Shimano Tiagra CS-HG500 11-34T |
| Chain | KMC X10 |
| Pedals | PP Pedals W/ Reflector |
Brakes
| Brakes | Clarks M2 Hydraulic Disc Brake; Levers: Clarks M2; Rotors: Clarks M2 160mm 6-Bolts |
|---|
Cockpit & Contact Points
| Headset | Semi Integrated Threadless, ZS 44/28.6 | ZS 44/30 |
|---|---|
| Handlebar | POLYGON SPORT, W: 640mm, BB: 31.8mm, R/D: 0mm, B: 6degree |
| Stem | POLYGON SPORT, EXT: 45mm, BB: 31.8mm, R/D: 3 degree |
| Saddle | Selle Royal |
| Seatpost | Polygon Sport, DXL: 30.9 X 400mm |
Wheels & Tires
| Hubs | F: Alloy QRX100mm 32H 6-Bolts / R: Alloy QRX135mm 32H 6-Bolts |
|---|---|
| Wheels | Alloy Double Wall 32H |
| Rims | F: 20'' Alloy Double Wall H:21mm W: 17.9mm 406 32H / R: 20'' Alloy Double Wall H:21mm W: 17.9mm 406 32H |
| Front Tire | VEE Speedster 20"X2.0" |
| Rear Tire | VEE Speedster 20"X2.0" |
No specifications match. Try a component name or clear your search.
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 | 360 mm |
| Effective top tube | 570 mm |
| Head tube | 250 mm |
| Head-tube angle | 70° |
| Seat-tube angle | 74.5° |
| Actual seat-tube angle | 74.5° |
| Chainstay / rear center | 400 mm |
| Wheelbase | 1078.5 mm |
| Bottom-bracket drop | 35 mm |
| Bottom-bracket height | 290 mm |
| Reach | 412.5 mm |
| Stack | 567.9 mm |
| Standover height | 594 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM
RPM = pedal turns per minute.
How 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
VEE SPEEDSTER 20"x2.0"
More parts (4)Fewer parts
SHIMANO TIAGRA RD-4700 DIRECT ATTACH
Shimano RD-4700 on eBaySponsored links
SHIMANO TIAGRA SL-4700
1x10-SPEED RAPIDFIRE
Shimano SL-4700 on eBaySponsored links
POLYGON SPORT
DxL: 30.9 x 400mm
SEMI INTEGRATED THREADLESS
ZS 44/28.6 | ZS 44/30
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
- VEE SPEEDSTER 20"x2.0"
- Rear tire
- VEE SPEEDSTER 20"x2.0"
- Seatpost diameter
- 30.9 mm
- Bottom bracket / shell
- BSA THREADED FOR 2-PIECE CRANKSET
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 MINIVELO FRAME · Fork: ALLOY RIGID FORK · Aluminum
Drivetrain
Check drivetrain wear →Archived: Shifters: SHIMANO TIAGRA SL-4700, 1x10-SPEED RAPIDFIRE · Rear derailleur: SHIMANO TIAGRA RD-4700 DIRECT ATTACH · Crankset: PROWHEEL OUNCE 48T · Bottom bracket: BSA THREADED FOR 2-PIECE CRANKSET · Cassette: SHIMANO TIAGRA CS-HG500 11-34T · Chain: KMC X10
Brakes
Inspect the brakes →Archived: Brakes: CLARKS M2 HYDRAULIC DISC BRAKE; Levers: CLARKS M2; Rotors: CLARKS M2 160MM 6-BOLTS
Wheels and tires
Check wheels and tires →Archived: Wheels: ALLOY DOUBLE WALL 32H · Rims: F: 20'' ALLOY DOUBLE WALL H:21mm W: 17.9mm 406 32H / R: 20'' ALLOY DOUBLE WALL H:21mm W: 17.9mm 406 32H · Hubs: F: ALLOY QRx100mm 32H 6-BOLTS / R: ALLOY QRx135mm 32H 6-BOLTS · Front tire: VEE SPEEDSTER 20"x2.0" · Rear tire: VEE SPEEDSTER 20"x2.0"
Controls and contact points
Archived: Headset: SEMI INTEGRATED THREADLESS, ZS 44/28.6 | ZS 44/30 · Handlebar: POLYGON SPORT, W: 640mm, BB: 31.8mm, R/D: 0mm, B: 6degree · Stem: POLYGON SPORT, EXT: 45mm, BB: 31.8mm, R/D: 3 degree · Seatpost: POLYGON SPORT, DxL: 30.9 x 400mm · Saddle: SELLE ROYAL · Pedals: PP PEDALS W/ REFLECTOR
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.