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2023 Polygon

ZETA 2

A 20″ aluminum frame commuter bike with mid-range components and tektro hydraulic disc brakes.
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Manufacturer Price

$499
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
Drivetrain1 × 10
GroupsetTiagra
BrakesTektro Hydraulic Disc
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

26 mph

ZETA 2

31 mph

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Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

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Sizing
All Size

4'11" – 5'7"

Rider Fit Notes

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Geometry
Specs
Build
Frame

aluminum

BB Standard: BSA, Threaded

Fork

ALLOY RIGID FORK

Bottom Bracket

BSA THREADED FOR 2-PIECE CRANKSET

Headset

ZERO STACK (ZS) SEALED BEARING FOR TAPER HEAD TUBE, ZS 44/28.6 | ZS 44/30

Handlebar

ENTITY SPORT ALLOY, WIDTH 640MM, BAR BORE: 31.8MM, BEND: 6 DEGREE

Saddle

ENTITY SADDLE

Seatpost

ENTITY SPORT ALLOY

Type: Rigid

Groupset
Rear Derailleur

SHIMANO TIAGRA RD-4700 DIRECT ATTACH

Crank

ALLOY 48T 170MM

Shifters

SHIMANO TIAGRA SL-4700, 1x10-SPEED RAPIDFIRE

Cassette

SHIMANO CS-HG500 11-34T

Chain

KMC CHAIN

Brakes

TEKTRO HD-M275 HYDRAULIC DISC BRAKE

Type: Tektro Hydraulic Disc

Wheels
Rims

ALLOY DOUBLE WALL 406-21 32H FOR TYRE 406-20/35

Tires

VEE SPEEDSTER 20"x2.0"

Rider Notes
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First added May 10

Last updated July 13

Not listed for 688 days