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2022 Polygon SISKIU D5
2022 Polygon Siskiu D24
2022 Polygon Siskiu D6
2022 Polygon Siskiu D6 Dual Suspension
2022 Polygon Siskiu D24X
2022 Polygon SISKIU D7
2022 Polygon Siskiu T7
2022 Polygon Siskiu T8
2022 Polygon Siskiu T8 Dual Suspension
MSRP$1,249$1,299$1,499$1,499$1,699$1,799($2,247)$2,499$2,499
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CategoryTrailMountain YouthTrailTrailMountain YouthTrailEnduroTrailTrail
Weight36.8 lbs30.4 lbs37.6 lbs37.6 lbs30.0 lbs34.6 lbs34.0 lbs32.8 lbs32.8 lbs
FrameAluminumAluminumAluminumAluminumAluminumAluminumAluminumAluminumAluminum
ForkSunTour XCM HLO
SunTour RAIDON 32
SunTour XCR 32 Air
SunTour XCR 32 Air
X Fusion
RockShox Recon Silver RL
RockShox Recon Silver RL
Fox Rhythm Float 34
Fox Rhythm Float 34
Wheel Size27.5″24″27.5″ / 29″27.5″ / 29″24″27.5″ / 29″27.5″27.5″ / 29″27.5″
Wheel MaterialAluminumAluminumAluminumAluminumAluminumAluminumAluminumAluminumAluminum
Brake TypeHydraulic DiscMechanical DiscHydraulic DiscHydraulic DiscHydraulic DiscHydraulic DiscHydraulic DiscHydraulic DiscHydraulic Disc
GroupsetSora, Alivio
microSHIFT Acolyte
Deore, Shimano
Deore, Shimano
Deore
Deore
Deore, Shimano
SLX, Shimano
SLX, Shimano
Drivetrain2 × 91 × 81 × 101 × 101 × 101 × 111 × 121 × 121 × 12
Gear Range

Polygon SISKIU D5

27 mph

Polygon Siskiu D24

18 mph

Polygon Siskiu D6

28 mph

Polygon Siskiu D6 Dual Suspension

28 mph

Polygon Siskiu D24X

21 mph

Polygon SISKIU D7

25 mph

Polygon Siskiu T7

26 mph

Polygon Siskiu T8

28 mph

Polygon Siskiu T8 Dual Suspension

26 mph
SuspensionFullFullFullFullFullFullFullFullFull
Front Travel120mm120mm120mm120mm120mm120mm150mm150mm150mm
Rear Travel120mm120mm120mm120mm120mm120mm140mm140mm140mm
SeatpostRigidRigidDropperDropperDropperDropperDropperDropperDropper
Brand Sitepolygonbikes.combikesonline.combikesonline.combikesonline.combikesonline.compolygonbikes.combikesonline.combikesonline.combikesonline.com
Suggested Bikes

Spec Level

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

Spec level →$0$500$1,000$1,500$2,000
SISKIU D5
Siskiu D24
Siskiu D6
Siskiu D6 Dual Suspension
Siskiu D24X
SISKIU D7
Siskiu T7
Siskiu T8
Siskiu T8 Dual Suspension

Geometry

Specs
Frame

ALX XC TRAIL FRAME

ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle

ALX XC Trail 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle

ALX XC Trail 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle

ALX XC Trail Kids 6061 Aluminum Frame, 120mm Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded BB, ISCG05 Chain Guide, 142x12mm Thru-Axle

ALX XC TRAIL FRAME

ALX Trail 6061 Aluminium Frame, 140mm (27.5") / 135mm (29") Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle, ISCG05 Mount

ALX Trail 6061 Aluminum Frame, 140mm (27.5") / 135mm (29") Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle, ISCG05 Mount

ALX Trail 6061 Aluminum Frame, 140mm (27.5") / 135mm (29") Travel, Internal Routed Gear & Dropper Cables, Tapered Headtube, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle, ISCG05 Mount

Fork

SUNTOUR XCM HLO, 120MM TRAVEL

Suntour Raidon 32, Air Spring, 120mm Travel, Rebound, Lockout, Q-LOC2 Axle 15x100mm

SR Suntour XCR 32, Air Spring, 120mm Travel (27.5" & 29"), Rebound & Compression Adjuster, 15x100mm Thru-Axle

SR Suntour XCR 32, Air Spring, 120mm Travel (27.5" & 29"), Rebound & Compression Adjuster, 15x100mm Thru-Axle

X-Fusion Velvet 26", Air Spring, 120mm Travel, Rebound, Lockout, LockX Axle 15x100mm

ROCKSHOX RECON SILVER RL 120MM TRAVEL, 15x100MM W/ MAXLE STEALTH & 46MM (27.5) / 51MM (29") OFFSET

Rockshox Recon Silver-RL 150mm (27.5") / 140mm (29") Travel, Solo Air, Rebound, Compression To Lock, Tapered, Boost 15x110mm, Maxle Stealth Axle

Fox 34 Rhythm, 150mm (27.5") / 140mm (29") Travel, Grip Damper, Rebound & Sweep Adjust, Tapered, Boost 15x110mm Kabolt Axle

Fox 34 Rhythm, 150mm (27.5") / 140mm (29") Travel, Grip Damper, Rebound & Sweep Adjust, Tapered, Boost 15x110mm Kabolt Axle

Rear Shock

SUNTOUR RAIDON LO AIR, E2E: 190x51MM

Suntour Raindon R, Air Spring, Rebound, Custom Tune

X-Fusion O2 Pro RL, Air Spring, Rebound & Compression Adjuster, E2E 190x45mm, M8x25mm Hardware

X-Fusion O2 Pro RL, Air Spring, Rebound & Compression Adjuster, E2E 190x45mm, M8x25mm Hardware

X-Fusion O2 Pro, Air Spring, Rebound, Custom Tune

ROCKSHOX DELUXE SELECT PLUS E2E: 190x45MM, HARDWARE M8x25MM FOR BOTH SIDES

Rockshox Deluxe Select Plus, Debon Air, Rebound, 2-Position Compression, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm

Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever,Custom Tune, E2E: 210x55mm, Hardware: M8x25mm

Fox Float DPS, Evol LV Air Spring, Rebound Adjuster, 3-Position Lever,Custom Tune, E2E: 210x55mm, Hardware: M8x25mm

Bottom Bracket

BSA THREADED 68/73MM

BB Cartridge, BSA Thread

Shimano BSA Threaded 73mm

Shimano BSA Threaded 73mm

BB Cartridge, BSA Thread

BSA THREADED 68/73MM

BSA Threaded, 73mm

BSA Threaded, 73mm

BSA Threaded, 73mm

Headset

ZS 44/28.6 | ZS 56/40

Semi-Integrated Headset

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Semi-Integrated Headset

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Threadless Zero Stack Headset, ZS 44/28.6 | ZS 56/40

Stem

ENTITY SPORT ALLOY, E: 45MM, B: 31.8MM, R/D: 0DEGREE

Entity Sport, Alloy, Length: 40mm, BB: 31.8mm

Entity Sport, Alloy, 0 Degree

Entity Sport, Alloy, 0 Degree

Entity Sport, Alloy, Length: 40mm, BB: 31.8mm

ENTITY XPERT, ALLOY, E: 40MM, B: 31.8MM, R/D: 7DEGREE

Entity Xpert, Alloy 35mm

Entity Xpert, Alloy 35mm

Entity Xpert, Alloy 35mm

Handlebar

ENTITY SPORT ALLOY, W: 760MM, BB: 31.8MM, R/D: 12MM, B: 0DEGREE

Entity Sport, Alloy, Width: 640mm, Rise: 20mm

Entity Sport, Alloy, 12mm Rise, 6 Degree Back Sweep, 31.8mm

Entity Sport, Alloy, 12mm Rise, 6 Degree Back Sweep, 31.8mm

Entity Sport, Alloy, Width: 640mm, Rise: 20mm

ENTITY XPERT, ALLOY, W: 780MM, BB: 31.8MM, R/D: 30MM, B: 6DEGREE

Entity Xpert, Alloy, 780mm

Entity Xpert, Alloy, 780mm

Entity Xpert, Alloy, 780mm

Saddle

ENTITY VOID SADDLE, ø 7mm

Entity MTB Kids

Entity Void Saddle

Entity Void Saddle

Entity MTB Kids

ENTITY VOID SADDLE, ø 7mm

Entity Xtent Saddle

Entity Xtent Saddle

Entity Xtent Saddle

Seatpost

ENTITY SPORT ALLOY, DXL: 30.9x350MM

Entity Sport, Alloy, 30.9x250mm

TranzX JD-YSP23JL Dropper Post, Zero Offset, 30.9mm, Remote Lever

TranzX JD-YSP23JL Dropper Post, Zero Offset, 30.9mm, Remote Lever

Tranz-X JD-YSP23JL, Remote Lever, 30.9x350mm, 100mm Travel

TRANZX DROPPER 150MM (27.5") / 170MM (29"), DXL: 30.9 x 459 (27.5") / 499MM (29")

Tranz-X JD-YSP23JL, 150mm (S, M) / 170mm Travel (L, XL), 30.9x459mm / 499mm, Zero Offset

Tranz-X JD-YSP23JL, 150mm (S, M) / 170mm Travel (L, XL), 30.9x459mm / 499mm, Zero Offset

Tranz-X JD-YSP23JL, 150mm (S, M) / 170mm Travel (L, XL), 30.9x459mm / 499mm, Zero Offset

Pedals

PP FLAT PEDAL

Alloy Pedal

Flat Alloy

Flat Alloy

Alloy Pedal

Alloy flat pedal

Alloy Flat with Pins

Alloy Flat with Pins

Alloy Flat with Pins

Groupset
Rear Derailleur

SHIMANO RD-M3100 DIRECT ATTACH 9-SPEED

Microshift Acolyte RD-M5185M, Medium Cage, Clutch

Shimano Deore RD-M5120, 10-Speed, Direct Mount

Shimano Deore RD-M5120, 10-Speed, Direct Mount

Shimano Deore RD-M5120, Clutch

SHIMANO DEORE RD-M5100 DIRECT ATTACH 11-SPEED

Shimano Deore RD-M6100 12-Speed

Shimano SLX RD-M7100 12-Speed

Shimano SLX RD-M7100 12-Speed

Front Derailleur

SHIMANO ALIVIO FD-M3120-E

Crank

SHIMANO FC-MT210 36/22T TWO PIECE CRANK, 170MM

Prowheel C10Y-NW, 30T, 140mm

Shimano Deore FC-MT5100, 32T, 10-Speed, Hollowtech II, Boost

Shimano Deore FC-MT5100, 32T, 10-Speed, Hollowtech II, Boost

Prowheel Charm, 32T, 140mm

SHIMANO FC-M5100 SINGLE 32T TWO PIECE CRANK, 170MM (S,M) / 175MM (L,XL)

Shimano MT-510-1 Boost 32T, 170mm (S, M) / 175mm (L, XL)

Shimano MT-510-1 Boost 32T, 170mm (S, M) / 175mm (L, XL)

Shimano MT-510-1 Boost 32T, 170mm (S, M) / 175mm (L, XL)

Shifters

SHIMANO SL-M3100, 2x9-SPEED TRIGGER

Microshift Acolyte Trigger SL-M7180M, 1x8-speed

Shimano SL-M4100 1x10-Speed Trigger

Shimano SL-M4100 1x10-Speed Trigger

Shimano Deore SL-M4100, 1x10-speed

SHIMANO DEORE SL-M5100, 11-SPEED TRIGGER

Shimano Deore SL-M6100 12-Speed

Shimano SLX SL-M7100 12-Speed

Shimano SLX SL-M7100 12-Speed

Cassette

SHIMANO CS-HG200 11-36T 9-SPEED

Microshift Acolyte CS-H083, 8-speed, 12-42T

Shimano CS-M4100, 10-46T, 10-Speed

Shimano CS-M4100, 10-46T, 10-Speed

Shimano Deore CS-M4100, 10-speed, 11-46T

SHIMANO DEORE CS-M5100 11-51T 11-SPEED

Shimano Deore CS-M6100 12-Speed 10-51t, Hyperglide+

Shimano SLX CS-M7100 12-Speed 10-51t, Hyperglide+

Shimano SLX CS-M7100 12-Speed 10-51t, Hyperglide+

Chain

KMC X9

KMC Z8

KMC X10, 10-Speed

KMC X10, 10-Speed

KMC X10

KMC X11-1

KMC X12

KMC X12

KMC X12

Chain Guide

none

Brakes

SHIMANO MT200 HYDRAULIC DISC BRAKE, ROTOR: FRONT:180MM REAR:160MM CENTER-LOCK

Tektro MD-M280, Mechanical Disc

Shimano BR-M201 Hydraulic

Shimano BR-M201 Hydraulic

Tektro HD-J285, Hydraulic Disc

SHIMANO MT200 HYDRAULIC DISC BRAKE, ROTOR: FRONT:180MM REAR:160MM CENTER-LOCK

Tektro HD-M735, Caliper F/R: 4-Piston/2-Piston

Tektro HD-M745, Caliper F/R: 4-Piston

Tektro HD-M745, Caliper F/R: 4-Piston

Brake Levers

SHIMANO BL-M201 HYDRAULIC DISC BRAKE

Tektro HD-TS325, Short Lever Reach

Tektro HD-J2855, Short Lever Reach

Wheels
Rims

ALLOY DOUBLE WALL, RIM: ALLOY DOUBLE WALL 584-15 32H FOR TYRE 584-35/68

Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed **

Entity X15 Doublewall Disc 32H, 25mm Internal Width, Tubeless Ready **

Entity X15 Doublewall Disc 32H, 25mm Internal Width, Tubeless Ready **

Entity X15 Disc, 32H, Internal Width: 24mm, Tubeless Tape Installed *

ALLOY DOUBLE WALL, RIM: ALLOY DOUBLE WALL 584 / 622-30 32H FOR TYRE 584 / 622-54/76

Entity XL2 Disc 35-584 (27.5") / 35-622 (29"), 35mm Inner Width, Tubeless Tape installed

Entity XL2 Disc 35-584 (27.5") / 35-622 (29"), 35mm Inner Width, Tubeless ready*

Entity XL2 Disc 35-584 (27.5") / 35-622 (29"), 35mm Inner Width, Tubeless ready*

Spokes

Stainless Steel Spokes

14g Black Stainless Steel

Entity Stainless, Brass Nipple

Entity Stainless, Brass Nipple

14g Black Stainless Steel

Stainless Steel Spokes

Front Hub

Alloy 32H, Center Lock, F: QRx100mm / R: QRx141mm

Entity 15x100 / 12x142mm Thru-Axle, 32H, Sealed Bearings

Shimano HB-MT400, Thru Axle 15x100mm, 32H Center-Lock

Shimano HB-MT400, Thru Axle 15x100mm, 32H Center-Lock

Entity 15x100 / 12x142mm Thru-Axle, 32H, Sealed Bearings

Shimano alloy hubs

Shimano HB-MT410, Thru Axle 15x110mm 32h, Center-Lock

Shimano HB-MT410, Thru Axle 15x110mm 32h, Center-Lock

Shimano HB-MT410, Thru Axle 15x110mm 32h, Center-Lock

Rear Hub

Alloy 32H, Center Lock, F: QRx100mm / R: QRx141mm

Entity 15x100 / 12x142mm Thru-Axle, 32H, Sealed Bearings

Shimano FH-MT400, Thru Axle 12x148mm, 32H Center-Lock

Shimano FH-MT400, Thru Axle 12x148mm, 32H Center-Lock

Entity 15x100 / 12x142mm Thru-Axle, 32H, Sealed Bearings

Shimano alloy hubs

Shimano FB-MT410, Thru Axle 12x148mm 32h, Center-Lock, Microspline Hub

Shimano FB-MT410, Thru Axle 12x148mm 32h, Center-Lock, Microspline Hub

Shimano FB-MT410, Thru Axle 12x148mm 32h, Center-Lock, Microspline Hub

Tires

PERFORMANCE TIRE 27.5"x2.25"

Vee Tire Flow Snap 24X2.4", Natural Wall, Wire Bead, Tackee Compound *

Entity Spiderbait 27.5x2.25" / 29x2.25" *

Entity Spiderbait 27.5x2.25" / 29x2.25" *

Vee Tire Flow Snap 24X2.4", Natural Wall, Folding Bead, Tackee Compound, Enduro Core, Tubeless Ready

SCHWALBE NOBBY NIC PERFORMANCE 27.5"x2.25" / 29"x2.25"

WTB Trail Boss G2 27.5x2.4" / 29x2.4", TCS Light/Fast Rolling,Tri-Tec Triple Compound, Aramid Bead, Slash Guard Sidewall Protection, Tubeless Ready

Schwalbe Hans Dampf Evo 27.5x2.60" / 29x2.60", ADDIX Soft, Snakeskin, Tubeless ready

Schwalbe Hans Dampf Evo 27.5x2.60" / 29x2.60", ADDIX Soft, Snakeskin, Tubeless ready

Disk Rotors

Tektro TR 160-24, F/R: 160mm, 6-bolt

Shimano SM-RT10 Centerlock, F: 180mm / R: 160mm

Shimano SM-RT10 Centerlock, F: 180mm / R: 160mm

Tektro TR 160-24, F/R: 160mm, 6-bolt

Shimano SM-RT54 180mm, Center-Lock

Shimano SM-RT54 180mm, Center-Lock

Shimano SM-RT54 180mm, Center-Lock