Polygon Siskiu D6

2023 MountainTrail Manufacturer page

Last known price: $1,149

Prices shown first for United States
Travel: 120 / 120 mm Fork / rear shock
Wheels: 27.5″, 29″
Drivetrain: 1 × 10 32t / 10–42t
Gear range: 420%
Weight: 17.04 kg 37.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 152–165
MD 162–175
MD 162–175
LG 172–185
XL 182–195

Components

16 of 23 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

2 parts

Drivetrain

6 parts

Bottom bracket

BSA THREADED 68/73mm Not identified
Cassette
- Shimano Deore CS-M4100-10 10 speeds 10–42t
CS-M4100-10CS-M4100
Chain
- KMC X10 10 speeds
Crankset
- Shimano Deore FC-M5100-1 11 speeds 32t
FC-M5100
Rear derailleur
- Shimano RD-M4120
RD-M4120
Shifters
- Shimano Deore SL-M4100 10 speeds
SL-M4100

Brakes

3 parts

Brake levers
- Shimano BL-MT201
BL-MT201
Brakes
- Shimano BL-MT201
BL-MT201
Disc rotors
- Shimano SM-RT10
SM-RT10

Wheels and tires

5 parts

Front hub
- Shimano HB-MT400-B
HB-MT400
Rear hub
- Shimano FH-MT400-B
FH-MT400
Rims

ALLOY DOUBLE WALL 584 / 622-24 32H FOR TYRE 584 / 622-35/68 Not identified
Spokes
- Entity
Tires

DELI 27.5"x2.25" / 29"x2.25" Not identified

Cockpit and contact points

6 parts

Handlebar
- Entity
Headset

THREADLESS ZERO STACK HEADSET, ZS 44/28.6 | ZS 56/30 Not identified
Pedals

PP PEDAL Not identified
Saddle
- Entity
Seatpost

ALLOY DROPPER 150mm / 170mm travel, 30.9 x 442mm (S-M) / 495mm (L-XL) Not identified
Stem
- Entity

Sizes and geometry

5 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 445mm

Stack 607mm

Wheelbase 1165mm

Head angle 67.5°

Seat angle 76.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Frame
Reachmm	425	445	445	465	485
Stackmm	571.2	580.4	606.7	615.9	625.2
Top tube lengthmm	572.7	595.1	603.9	624.3	646.7
Seat tube lengthmm	395	435	435	487	522
Head tube lengthmm	102	105	102	112	122
Head tube angle	67°	67°	67.5°	67.5°	67.5°
Seat tube angle	75.5°	75.5°	76°	76°	76°
Chainstay lengthmm	432	432	436	436	436
Wheelbasemm	1133	1157	1165	1189	1213
Front centermm	702	726	733	757	781
Bottom bracket dropmm	27	27	47	47	47
Bottom bracket heightmm	326	326	326	326	326
Standover heightmm	676	696	698	733	761
Fork rakemm	42	42	46	46	46
Trailmm	105	105	100	100	100
Stack/reach ratio	1.34	1.30	1.36	1.33	1.29
Suspension and parts
Front travelmm	120	120	120	120	120
Rear travelmm	120	120	120	120	120
Crank lengthmm	170	170	170	175	175
Handlebar widthmm	760	760	760	760	760
Stem lengthmm	45	45	45	45	45
Dropper post travelmm	150	150	150	170	170

Not published by the manufacturer: Stem angle and Seatpost length.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Bicycle weight: 17.04 kg

37.6 lb

Suspension

Suspension configuration: Full suspension
Front travel: 120 mm
Rear travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 10
Smallest sprocket: 10
Largest sprocket: 42
Lowest gear: 22.1 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Coil
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″, 29″

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: 2023
Sample: 2,195 bicycles with this information
Coverage: 97.5% of the class

Lowest gear

22.1 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2023
Sample: 1,627 bicycles with this information
Coverage: 72.2% of the class

Highest gear

92.8 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2023
Sample: 1,627 bicycles with this information
Coverage: 72.2% of the class

Shifting

Mechanical

359 of 2,251 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2023
Sample: 2,251 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.5 km/h
Highest gear: 35.5 km/h

Total gear range 420%

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: 22.1–92.8 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2023
Lowest gear: 1627 bicycles with this information, 72.2% of the class
Highest gear: 1627 bicycles with this information, 72.2% 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 2023 builds
Specification	This bicycle Polygon Siskiu D6	Polygon Siskiu D24	Polygon Siskiu D24X	Polygon Siskiu D5	Polygon Siskiu D6 SE	Polygon Siskiu D7
Frame
Bicycle weight	17.04 kg	13.79 kg	13.61 kg	16.7 kg	Not informed	15.7 kg
Drivetrain
Smallest chainring	32	30	32	22	32	32
Largest chainring	32	30	32	22	32	32
Rear sprockets	10	8	10	9	10	11
Smallest sprocket	10	12	11	11	10	11
Largest sprocket	42	42	46	34	42	51
Lowest gear	22.1 in	17.1 in	16.7 in	17.8 in	21.0 in	18.2 in
Highest gear	92.8 in	60.0 in	69.8 in	55.0 in	88.0 in	84.4 in
Brakes
Brake type	Hydraulic disc	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc
Cockpit
Seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost	Rigid seatpost	Dropper seatpost	Dropper seatpost
Other specifications
Fork spring	Coil	Air	Air	Coil	Coil	Air
Tire width	2.25″	2.4″	2.4″	2.25″	2.25″	2.25″
Wheel size	27.5″ / 29″	24″	24″	27.5″	27.5″	27.5″ / 29″