Polygon Premier 4

2021 MountainTrail Manufacturer page

Last known price: $679

Prices shown first for United States
Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 2 × 8 22–36t / 12–32t
Gear range: 436%
Weight: 14.9 kg 32.8 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 152.5–165
MD 162.5–175
LG 172.5–185

Components

9 of 18 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

ALUTECH XC SPORT FRAME Not identified

Suspension

2 parts

Fork
- SR Suntour
Rear shock

None

Drivetrain

7 parts

Bottom bracket

CARTRIDGE BEARING 68x127mm Not identified
Cassette
- Shimano CS-HG200 12–32t
CS-HG200
Chain
- KMC Z8.3 8 speeds
Z-8
Crankset

ALLOY CRANK 36/22T, 170MM Not identified
Front derailleur
- Shimano Acera
Rear derailleur
- Shimano Acera RD-M3020 8 speeds
RD-M3020
Shifters
- Shimano Altus SL-M315
SL-M315

Brakes

1 part

Brakes

HYDRAULIC DISC BRAKE Not identified

Wheels and tires

2 parts

Rims

ALLOY DOUBLE WALL Not identified
Tires

DELI 27.5"x2.25" Not identified

Cockpit and contact points

6 parts

Handlebar
- Entity
Headset

Semi-integrated, S.H.I.S. ZS 44/28.6 | 44/30 Not identified
Pedals

PP PEDALS W/ PP CAGE Not identified
Saddle
- Entity
Seatpost

ALLOY SEATPOST, 27.2x350mm Not identified
Stem
- Entity

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 399mm

Stack 610mm

Wheelbase 1087mm

Head angle 69.0°

Seat angle 73.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	383.5	398.5	417
Stackmm	610	610	615
Top tube lengthmm	570	585	605
Seat tube lengthmm	406	456	506
Head tube lengthmm	100	100	105
Head tube angle	69°	69°	69°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	430	430	430
Wheelbasemm	1072	1087	1107
Front centermm	646	661	681
Bottom bracket dropmm	47	47	47
Bottom bracket heightmm	299	299	299
Standover heightmm	713	753	793
Fork rakemm	42	42	42
Trailmm	91	91	91
Stack/reach ratio	1.59	1.53	1.48

Not published by the manufacturer: 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
Bicycle weight: 14.9 kg

32.8 lb

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 22
Largest chainring: 36
Rear sprockets: 8
Smallest sprocket: 12
Largest sprocket: 32
Lowest gear: 18.9 in
Highest gear: 82.5 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Fork spring: Coil
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,325 bicycles with this information
Coverage: 98.1% of the class

Lowest gear

18.9 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Highest gear

82.5 gear inches

This value is below the central range for this class.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,138 bicycles with this information
Coverage: 84.2% of the class

Shifting

Mechanical

53 of 1,347 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2021
Sample: 1,347 bicycles with this information
Coverage: 99.7% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 31.6 km/h

Total gear range 436%

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: 18.9–82.5 gear inches
Class reference (p10–p90): 16.9–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2021
Lowest gear: 1138 bicycles with this information, 84.2% of the class
Highest gear: 1138 bicycles with this information, 84.2% of the class

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 2021 builds
Specification	This bicycle Polygon Premier 4	Polygon Premier 5	Polygon Premier Ultralight 24 inch
Frame
Bicycle weight	14.9 kg	14.7 kg	10.43 kg
Fork material	Not informed	Not informed	Steel
Suspension
Suspension configuration	Hardtail	Hardtail	Rigid
Front travel	120 mm	120 mm	Not informed
Drivetrain
Front chainrings	2	2	1
Smallest chainring	22	22	32
Largest chainring	36	36	32
Rear sprockets	8	9	7
Smallest sprocket	12	11	14
Largest sprocket	32	36	28
Lowest gear	18.9 in	16.8 in	27.4 in
Highest gear	82.5 in	90.0 in	54.9 in
Brakes
Brake type	Hydraulic disc	Hydraulic disc	Rim brake
Other specifications
Fork spring	Coil	Coil	Not informed
Suspension	Hardtail	Hardtail	Rigid
Tire width	2.25″	2.25″	1.75″
Wheel size	27.5″	27.5″	24″
Bottom bracket standard	Not informed	Not informed	BSA
Tire clearance	Not informed	Not informed	Maximum tire width: 2.1″

Changes since 2020
Specification	2020 Polygon Premier 4	This bicycle Polygon Premier 4
Frame
Bicycle weight	Not informed	14.9 kg
Drivetrain
Front chainrings	3	2
Smallest chainring	24	22
Largest chainring	42	36
Smallest sprocket	Not informed	12
Largest sprocket	Not informed	32
Lowest gear	Not informed	18.9 in
Highest gear	Not informed	82.5 in