Polygon Zeta Velo

2025 UrbanCommuter Manufacturer page

Last known price: $499

Prices shown first for United States
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 10 48t / 11–34t
Gear range: 309%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

All Size 150–170

Components

12 of 21 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

aluminum Not identified

Suspension

1 part

Fork

ALLOY RIGID FORK Not identified

Drivetrain

6 parts

Bottom bracket

BSA THREADED FOR 2-PIECE CRANKSET Not identified
Cassette
- Shimano CS-HG500 10 speeds 11–34t
CS-HG500
Chain
- KMC X10 10 speeds
Crankset
- Prowheel 48t
Rear derailleur
- Shimano Tiagra RD-4700 10 speeds
RD-4700
Shifters
- Shimano Tiagra SL-4700 2 speeds
SL-4700

Brakes

3 parts

Wheels and tires

5 parts

Front hub

ALLOY QRx100mm 32H 6-BOLTS Not identified
Rear hub

ALLOY QRx135mm 32H 6-BOLTS Not identified
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 Not identified
Spokes

F: 14G STAINLESS NDS:182mm DS:184mm / R: 20'' ALLOY DOUBLE WALL H:21mm W: 17.9mm 406 32H Not identified
Tires
- Vee Tire

Cockpit and contact points

5 parts

Handlebar
- Polygon
Headset

SEMI INTEGRATED THREADLESS, ZS 44/28.6 | ZS 44/30 Not identified
Pedals

PP PEDALS W/ REFLECTOR Not identified
Saddle
- Selle Royal On
Seatpost
- Polygon

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size All Size

Table

Reach 413mm

Stack 568mm

Wheelbase 1079mm

Head angle 70.0°

Seat angle 74.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	412.5
Stackmm	567.9
Top tube lengthmm	570
Seat tube lengthmm	360
Head tube lengthmm	250
Head tube angle	70°
Seat tube angle	74.5°
Chainstay lengthmm	400
Wheelbasemm	1078.5
Front centermm	681
Bottom bracket dropmm	35
Bottom bracket heightmm	290
Standover heightmm	594
Fork rakemm	69
Stack/reach ratio	1.38

Not published by the manufacturer: Trail, 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: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 48
Largest chainring: 48
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 28.2 in
Highest gear: 87.3 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: BSA
Tire width: 2″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.8 km/h
Highest gear: 33.4 km/h

Total gear range 309%

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: 28.2–87.3 gear inches

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 2025 builds

Differences across 2025 builds
Specification	This bicycle Polygon Zeta Velo	Polygon Zeta Fitte	Polygon Zeta Mixte
Drivetrain
Front chainrings	1	2	2
Smallest chainring	48	34	34
Largest chainring	48	50	50
Lowest gear	28.2 in	20.0 in	20.0 in
Highest gear	87.3 in	90.9 in	90.9 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Rim brake
Other specifications
Bottom bracket standard	BSA	Not informed	BSA
Tire width	2″	Not informed	Not informed