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Siskiu T: Weekend ride vibes

Siskiu T: Weekend ride vibes
‘T’ is for trail, and trails were built for the Sisk-yiewww. The Siskiu T is a true all-round trail bike that was built for weekends away with mates. Whether you’re looking to send it down your first trail or charge hard through some tech single track, the Siskiu has you covered.
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A fun, capable bike
The Siskiu is probably the best looking bike on test. It’ll make an excellent all-rounder for someone that loves rough terrain.
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A well Spec’d bike
The Polygon Siskiu T series bikes are some of the best looking, affordable dual suspension mountain bikes on the market.
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Modern geometry
Geometry is on point for trail riding; frame is future-proof and ready for upgrades; decent tyres for getting rowdy; capable suspension; 1x12 gears.
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5 stars
2 year update
"I've had my Siskiu T8 for two year. I couldn't be happier with my bike. After two years of hard riding and putting the T8 through the paces, I would still buy this bike again."
Tom 2
United States

The T6 is the most affordable Siskiu T. When it comes to components, it’s spec’d with a RockShox Recon Silver RL fork, which is the same as the T7 - giving you plush suspension up front. Although, compared to the T7, the T6 steps down a notch with a lower-spec'd rear shock. Moving to the drivetrain, this underdog comes with10-speed Deore, which is less range than the T7(12-speed), but don’t worry, this is still enough for those steep climbs. That aside, you’ll get reliable 2-piston brakes (not as powerful as the 4-piston on the T7). This hard-hitter is perfect for beginners, those upgrading from a hardtail, or for more experienced riders that just don’t want to break the bank.


Slightly more expensive than the T6; the T7 packs a punch with its upgrades. Alongside thetried and tested T series frame, updated gusset, and trail-ready geometry, the bike is spec’d with the same fork as the T6, but takes a step up with a better rear shock. Moving to the drivetrain, this trail-sender comes with a wider gear rangecompared to the T6. It doesn’t just stop there though… you’ll be loaded with hard-hitting4-Piston brake calipers in the front - upgrading you from the 2-Piston on the T6.


A significant improvement in the price/spec ratio compared to the T7. If you’re someone who is looking for more premium components, the T8 is an excellent choice. The Fox Float DPS rear shock offers more fine-tuning options, includingadditional adjustments for compression damping (vs T7). When it comes to the fork, you’ll be provided with more advanced features and awider range of adjustability. Aside from the two bigger leaps in perfor mance, the T8 is kitted out with marginally better stopping power - giving you an additional 2-pistons in the rear compared to the T7 (4-piston/4-piston F/R). With all that being said, more experienced riders will also appreciate the bump up to a crispier SLX drivetrain.

Ultra high-end

Although the price between the T8 and T9 are the biggest, the performance improvements warrant the price bump. The most noticeable difference between the T8 and T9 is the fork. The 36 performance elite is stiff, light, and has Fox’s best FIT4 damping. Aside from the exceptionally capable fork, the adjustability doesn’t stop there. Deemed one of the most tunable air shocks on the market, the X2 has taken the top step at the world’s biggest events. When charging hard down gnarly descents and railing tight corners, you’ll not only be supported by ultra high-end components, you’ll be backed by grippy 2.6” tyres (vs. 2.4” T8) and buttery smooth shifting (T8 - SLX vs. XT).


Designed around our Wheel Fit Size System, the Siskiu T features 29”wheels on LG & XL frame sizes, MD sizes offering the choice of 29” or 27.5” and SM sizes being optimized around the agility of 27.5” only. 29” models feature 135mm of rear travel with 140mm forks whilst 27.5” bikes have 140mm in the rear with 150mm up front. Seat tubes have been significantly shortened to allow for 150mm dropper posts on SM and MD frame, 170mm on LG and XL.

  • 01 - Stable
    Given a healthy dose of slack (65-degree head angle), the T will have you feeling confident on the descents - maintaining high-speed stability when the trails get hairy.
  • 02 - Confident
    Coming with a longer 460mm reach (size: M), the Siskiu builds on the MTB mantra 'long and slack'. You'll get that added stability as you bang it down those chunky descents.
  • 03 Efficient
    With the steep 76.7 degree seat tube angle, you'll be more centred over the bike, which improves the climbing efficiency whilst enhancing the handling on those steep pinches.
  • 04 - Playful
    With the short 425mm chainstay, the Siskiu T is fun and playful - allowing you to flick it out of corners and manoeuvre tech sections with ease.
Siskiu T6
Siskiu T7
Siskiu T8
Siskiu T9
Steel charcoal gloss
Blue green
Golden black
Charcoal black
Purple black
Forest green black
Bike Type Trail Trail Trail Trail
Frame ALX Trail ALX Trail ALX Trail ALX Trail
Fork RockShox Recon Silver RL RockShox Recon Silver RL Fox Rhythm 34 FOX 36 Performance Elite
Rear Shock X-Fusion O2 PRO R RockShox Deluxe Select Plus Fox Float DPS FOX 36 Performance Elite
Drivetrain 1x10 Speed Shimano Deore 1x12 Speed Shimano Deore 1x12 Speed Shimano SLX 1x12 Speed Shimano XT
Brakes Shimano MT-201 (F/R: 180mm) 2-piston calipers (F/R) Tektro HD-M735 (F/R: 180mm) 4/2-piston calipers (F/R) Shimano MT-420 (F/R: 180mm) 4-piston calipers (F/R) TRP DHR EVO (F/R: 180mm) 4-piston calipers (F/R)
Wheel Size 27.5/29" 27.5/29" 27.5/29" 27.5/29"
Seat Post Dropper Dropper Dropper Dropper
Price $1899 $2299 $2799 $3699
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What is the max tyre clearance?

The max tyre clearance is 50c.

What is the biggest chainring I can fit?

What are the biggest rotors I can fit?

Can you fit mudguards?