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The Polygon Siskiu T is a popular trail whip that lands at a price that’s hard to pass up. We’ve had plenty of time aboard previous generations of the Siskiu T, and for the money, they are outstanding bikes.
The brand has recently launched an updated Siskiu T, and lovers of the platform will be happy to see that they haven’t changed a whole lot. There are some small tweaks here and there to refine the overall package, and we’ve just received one for testing, so stay tuned for our impressions in the coming months.
Related:
- 2026 Polygon Collosus T8 | The best all round MTB Polygon has produced
- 2026 Polygon Syncline DR 9 Review | Race Ready Performance at a Competitive Price
What’s new with the Polygon Siskiu T
At first glance, the Siskiu T silhouette appears identical to the previous iteration, which we last reviewed in 2024. But take a closer look, and these refinements become clear.
Firstly, Polygon has updated the rear triangle, which is said to be stronger and stiffer, and better suited to the bike’s intended use. The internal cable routing has also been revised to prevent cable movement and prolong shifter housing life according to the brand.
The switch to a UDH hanger and accessory mounts on the underside of the top tube is a little more obvious. Both are great additions to the Siskiu T. Given the slender downtube, it’s no surprise to see the lack of any internal storage, as we’ve seen on the new carbon Collosus. Still, with the single water bottle mount and accessory mount, riders should be able to stash plenty of spares.
Previously, the Siskiu T was available with 29in wheels and 140/135mm travel in sizes Medium, Large, and Extra-Large, or with 27.5in wheels and 150/140mm travel in sizes Small or Medium. This forced riders into a given wheel size based on their height, which may not have sat well with everyone. To keep things consistent and simplify the lineup, the Siskiu T is now available only in the 29in, 140/135mm travel configuration across all four frame sizes.
Similar to the outgoing Siskiu T, the suspension is based around a single-pivot suspension platform with a one-piece rocker link to drive the shock. At each pivot, there are single sealed-cartridge bearings, except for the seatstay pivot, which still uses an IGUS bushing.
Geometry & Sizing
There are four sizes available in the Siskiu T, ranging from the typical size Small up to the Extra-Large we have on test, accommodating rider heights from 157cm up to 196cm according to Polygon.
Reach measurements start at 440mm for size small, and increase by 20-25mm per size, while 430mm chainstays are used across the board. The seat tube angle is relatively steep, at 77° on all sizes, along with a ‘slack but not too slack’ 65° head angle.
There are no geometry flip chips or wheel size flexibility, not a dealbreaker, but worth noting for those that like to tweak and tinker.
Price & Specs
The Siskiu lineup consists of five different models, with pricing starting at an impressive $2,599 AUD for the T6 build. The range tops out with the T0 build, which is the bike we have on test, retailing for over twice the price of the T6 build, at $5,699 AUD.
For that kind of cash, however, the T0 sports a tidy build package, consisting of Fox Factory suspension and a Shimano Deore XT drivetrain and brakeset.
Polygon Siskiu T0
- Frame | ALX Trail Aluminium Frame, 135mm Travel, BSA Threaded BB, 148×12 Boost Spacing, UDH Hanger
- Fork | Fox 36 Factory, GRIP X2 Damper, 140mm Travel
- Shock | Fox Float X Factory, 210×55mm
- Wheels | Polygon MT6 Aluminium Rims w/ Shimano Deore XT M8110 Hubs, 29in Front & Rear, Boost Spacing
- Tyres | Maxxis Minion DHF EXO+ MaxxGrip 29×2.5in Front, Maxxis Dissector DD MaxxGrip 29×2.4in Rear
- Drivetrain | Shimano Deore XT M8100 1x12spd, 10-51t Cassette, 32t Chainring
- Brakes | Shimano Deore XT M8120 4-piston, Shimano RT-CL800 Rotors (203mm Front, 180mm Rear)
- Bar | Polygon Expert Alloy, 780mm Wide, 35mm Rise
- Stem | Polygon Expert Alloy, 35mm Length
- Seatpost | Tranz X JD-YSP23KL, 34.9mm Diameter, 150mm (S/M), 170mm (L/XL)
- RRP | $5,699 AUD
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We’ll have a detailed written review in the works once we’ve clocked some serious time aboard the Polygon Siskiu T0 in the coming months. Stay tuned!
The post On Test | The Polygon Siskiu T0 is low on fuss and high on value appeared first on Flow Mountain Bike.
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[[{“value”:”The Polygon Siskiu T is a popular trail whip that lands at a price that’s hard to pass up. We’ve had plenty of time aboard previous generations of the Siskiu T, and for the money, they are outstanding bikes. The brand has recently launched an updated Siskiu T, and lovers of the platform will be
The post On Test | The Polygon Siskiu T0 is low on fuss and high on value appeared first on Flow Mountain Bike.”}]] Read More Flow Mountain Bike
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