Polygon ZETA 2 2021
2021 Urban
Estimate price |
609$
Weight | 12.8 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
Category -
Frame Aluminum -
Wheels 20" -
Groupset Tiagra -
Suspension Rigid -
Drivetrain 1 × 10 -
Brakes Hydraulic Disc
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
AL6 MINIVELO FRAME 20"
Suspension Fork
ALLOY RIGID FORK
Rear Shock
-
Drivetrain
Rear Derailleur
SHIMANO TIAGRA RD-4700 DIRECT ATTACH
Shift Levers
SHIMANO TIAGRA SL-4700, 1x10-SPEED RAPIDFIRE
Cassette
SHIMANO CS-HG500 11-34T
Crank
ALLOY 48T 170MM
Bottom Bracket
BSA THREADED FOR 2-PIECE CRANKSET
Chain
KMC CHAIN
Wheels
Rims
ALLOY DOUBLE WALL 406-21 32H FOR TYRE 406-20/35
Tires
VEE SPEEDSTER 20"x2.0"
Brakes
Brakes
TEKTRO HD-M275 HYDRAULIC DISC BRAKE
Cockpit
Stem
ENTITY SPORT ALLOY, EXT: 45MM, BAR BORE: 31,8MM, RISE/DROP: 3DEGREE
Handlebar
ENTITY SPORT ALLOY, WIDTH 640MM, BAR BORE: 31.8MM, BEND: 6 DEGREE
Seat
Saddle
ENTITY SADDLE
Seatpost
ENTITY SPORT ALLOY
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | All Size |
|---|---|
| Stack Reach Ratio | 1.38 mm |
| Bottom Bracket Height | 290 mm |
| Front Center | 681 mm |
| Rake | 69 mm |
| Stack | 561.9 mm |
| Reach | 406.5 mm |
| Top Tube Length | 564 mm |
| Seat Tube Angle | 74.5 ° |
| Seat Tube Length | 360 mm |
| Head Tube Angle | 70 ° |
| Head Tube Length | 250 mm |
| Chainstay Length | 394 mm |
| Wheelbase | 1072 mm |
| Bottom Bracket Drop | 35 mm |
| Standover Height | 588 mm |
| Wheels | 20" |
| Rider Min Height | 120 cm |
About this model
ZETA 2 is part of the Polygon Zeta model. 10 bikes variations carry this model name so far. Check out the entire range from 2021 of this model, by clicking this link.
Model range prices
Polygon ZETA 2 2021 is the cheapest bike model and costs 609$. Polygon Zeta 2 20inch City Bike 2021 is the most expensive one and costs 799$.
Safety
Your safety should be the top priority when you go for a ride. In short, make sure that you always use a helmet, high visibility clothing, and proper lights when riding at night-time.
General Urban bikes average price
According to our calculations, the average cost of a General Urban bike that is reliable is 499$. However, this doesn’t mean that if you spend less money on a General Urban bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, this bike was made available in 2021 for 609$. Doing a quick comparison, we notice that ZETA 2 price is 22.04% higher than the average cost of a General Urban bike.
General Urban bikes average weight
If we make a quick analysis of the average weight of a General Urban bike, we get 13.11 kg (28.9 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.
ZETA 2 weighs 12.8 kg (28.22 lbs) and is slightly lighter than the average. In short, the average General Urban bike weight is 2.42% higher than this one.
Overview of components
Fork material
When it comes to the fork, this bike has an aluminum one, which is a lighter material. However, it is not as tough, nor durable as steel is.
Wheels size
The ZETA 2 2021 bike is equipped with 20″ aluminum wheels when leaving the factory. The 20″ wheels are a good fit for folding bikes, BMX, or children bikes. In conclusion, they are great for flat ground or very easy trails.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.