New arrival
New arrival

2026 Polygon Siskiu T8

By Polygon
$2,999.00 CAD
503427001
Color: Chameleon Green
Size
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Description

SISKIU T: Trail-Ready Performance

Trail | 140mm/ 135mm Travel | ALX Alloy | 29" Wheels

The Polygon SISKIU T-Series is the definitive modern trail bike and the number one choice for riders looking for high-end performance without the big price tag. Built around a stiff, responsive alloy frame, 29er wheels and a proven 1x drivetrain, the SISKIU T balances technical climbing efficiency with aggressive descending stability.
Technical Specifications

Frameset

  • Frameset: ALX TRAIL 140mm TRAVEL
  • Fork: FOX 34 FLOAT RHYTHM 140mm TRAVEL
  • Rear Shock: FOX FLOAT P-S E2E: 210x55mm, HARDWARE: M8x25MM FOR BOTH SIDES
  • Size: S, M, L, XL
  • Frame Color: CHAMELEON GREEN/GREY

Drivetrain

  • Shifter: SHIMANO SLX SL-M7100, 1x12-SPEED TRIGGER
  • Crank: SHIMANO FC-M6120-1 BOOST, 32T
  • Cassette: SHIMANO SLX CS-M7100-12, 10-51T MICROSPLINE
  • Rear Derailleur: SHIMANO SLX RD-M7100-SGS DIRECT ATTACH
  • BB: SHIMANO 2-PIECE CRANKSET BSA THREADED
  • Chain: KMC NEW X-12
  • Pedal: ALLOY FLAT PEDAL W/ REPLACEABLE PIN & REFLECTOR

Cockpit

  • Saddle: LINC XTENT CR-MO ø 7mm
  • Seatpost: DROPPER POST XFUSION MANIC LC 150mm (S, M) / 170mm (L, XL) TRAVEL, 30.9x429mm (S, M) / 473mm (L, XL)
  • Handlebar: POLYGON EXPERT, W: 780MM BB: 35MM R/D: 30MM
  • Handlestem: POLYGON EXPERT E: 35MM BB: 35MM R/D: 0
  • Headset: FSA NO.57E FOR TAPER H/T ZS 44/28.6 | ZS 56/40

Wheel & Tire

  • Wheel Set: POLYGON MT6
  • Wheel Size: 29"
  • Tire: MAXXIS DISSECTOR 29"x2.40"
  • Rim: 584 / 622-29 32H FOR TYRE 584 / 622-54/76 W/ TUBELESS READY RIM TAPE
  • Hub: REAR HUB: SHIMANO HB-TC500-15-B THRU AXLE 15x110mm 32H CENTER-LOCK / REAR HUB: SHIMANO FH-TC500-MS-B THRU AXLE 12x148mm 32H CENTER-LOCK
  • Spokes: FRONT SPOKE: STAINLESS J-BEND 29" NDS:292 / DS:294 / REAR SPOKE: STAINLESS J-BEND 29" NDS:292 / DS:290

Brake

  • Brake Lever: SHIMANO BL-M4100
  • Brake Caliper: SHIMANO BL-M4100
  • Rotor: SHIMANO SM-RT54, 180mm CENTER-LOCK
Geometry
S M L XL
Height (cm) 155-165 165-175 175-185 185-195
Seat Tube Length (A) 390 400 415 430
Seat Tube Angle (B) 71.2 71.2 71.2 71.2
Effective Seat Tube Angle (C) 77 77 76 77
Head Tube Length (D) 89 95 110 125
Head Tube Angle (E) 64.5 64.5 64.5 64.5
Effective Top Tube (F) 568 595 619 644
Bb Height (G) 337.5 337.5 337.5 337.5
Bb Offset (H) 39 39 39 39
Chainstay Length (I) 430 430 432 430
Wheelbase (J) 1186 1214 1240 1267
Frame Reach (K) 440 465 485 505
Frame Stack (L) 604 609 622 636
Standover Height (M) 704 705 711 723
Seatpost Insertion Depth 240 250 265 280
Product Variants SKU/UPC
  • 2026 Polygon Siskiu T8: Chameleon Green / SM: SKU: 503427001 - UPC:
  • 2026 Polygon Siskiu T8: Chameleon Green / MD: SKU: 503427002 - UPC:
  • 2026 Polygon Siskiu T8: Chameleon Green / LG: SKU: 503427003 - UPC:
  • 2026 Polygon Siskiu T8: Chameleon Green / XL: SKU: 503427004 - UPC:
  • 2026 Polygon Siskiu T8: Grey / SM: SKU: 503427005 - UPC:
  • 2026 Polygon Siskiu T8: Grey / MD: SKU: 503427006 - UPC:
  • 2026 Polygon Siskiu T8: Grey / LG: SKU: 503427007 - UPC:
  • 2026 Polygon Siskiu T8: Grey / XL: SKU: 503427008 - UPC: