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Siskiu T: Weekend ride vibes
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$1899FRAME ALX Trail 6061 Fork RockShox Recon Silver-RL SHOCK X-Fusion 02 Pro R DRIVERTRAIN Shimano Deore BRAKES Shimano MT-201 -
$3699Frame ALX Trail 6061 Fork Fox 36 Performance Elite Shock Fox Float X Performance Drivetrain Shimano XT Brakes TRP DH-R EVO HD-M846 -
$2399Frame ALX Trail 6061 Fork RockShox Recon Silver-RL Shock RockShox Deluxe Select+ Drivetrain Shimano Deore Brakes Tektro MD-735 -
$2799Frame ALX Trail 6061 Fork Fox 34 Rhythm Float Shock Fox Float DPS Drivetrain Shimano SLX Brakes Tektro MD-745
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A fun, capable bikeThe Siskiu is probably the best looking bike on test. It’ll make an excellent all-rounder for someone that loves rough terrain.Read the review
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A well Spec’d bikeThe Polygon Siskiu T series bikes are some of the best looking, affordable dual suspension mountain bikes on the market.Read the review
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Modern geometryGeometry is on point for trail riding; frame is future-proof and ready for upgrades; decent tyres for getting rowdy; capable suspension; 1x12 gears.Read the review
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Feels really stableThanks to the thoroughly modern geometry and sizing, the Siskiu T8 is a bike that can be ridden hard straight from the get go. It's one of the best budget mountain bikes out there.Read the review
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Exceptionally capablePolygon has done a remarkable job pairing such a capable build kit with a tough alloy frame and contemporary geometry.Read the review
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Competent climberIt performs well in tight, technical terrain and long, steep grinds. The quality component spec, specifically the drivetrain, and tyres, helps bolster its solid climbing performance.Read the review
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TESTED: 2024 Polygon Siskiu T6 Trail BikeThe ride quality and handling is far beyond what you may expect for the price-point. You'd easily think you were riding a bike worth a lot more.Read the review
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I love this bike!! "I picked up my Siskiu T8 and assembled it Friday night and I've been riding over the weekend. It's a total game changer for my riding. I had an old Kmart special which did an okay job but I never realised how limited I was till I got my T8."Andrew WAustralia -
Amazing bike, amazing customer service.
"I bought the Polygon Siskiu T8 after a multi-month research deep-dive on dual sus mtb's in the $3k-$4k range. I narrowed it down to 3 bikes. The T8 came out on top for me because of the components, Great Shimano groupset and Fox suspension."MattoAustralia
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Great bike and seamless purchase
"BikesOnline gives you a better selection of bikes than my local store and I was impressed with the speedy delivery, easy assembly and finally a great ride! The T8 is certainly a fantastic bike for a very reasonable price."Richard DAustralia
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Great ride "Bought the T8 as my first dual suspension bike. Really enjoying it so far, got the suspension dialled in. Look forward to every weekend riding."ChristianAustralia
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Amazing bike and value that is hard to beat."Have previously been riding a hardtail and since switching over to the T8 I've noticed a huge difference in my trail experience from the first ride. Very good investment and would highly recommend."Awesome BAustralia
The T6 is the base model out of the Polygon Siskiu T series - spec’d to be capable, right out of the box. Coming with reliable components and the same ALX alloy frame as its older siblings, this trail tamer is perfect for those who are looking to upgrade their hardtail, beginner mountain bikers, or those who want a trail bike that doesn’t break the bank. Compared to the T7 (the next tier up), the T6 has the same fork(RockShox Recon Silver RL), but different brakes (2-piston vs 4-piston), rear shock (X-Fusion O2 PRO vs RockShox Deluxe Select Plus), and drivetrain (10 vs 12-Speed Deore).
TheT7 is the intermediate model out of the Polygon Siskiu T series - spec’d with slightly better components compared to the T6; although, it still shares the same fork and ALX alloy frame (frame is the same on all models). This hard-hitter is perfect for those who want to take it a step up from the T6. Other than coming with the same fork (RockShox Recon Silver RL), the T7 is equipped with mid-tier brakes (4-piston vs 2-piston), rear shock (RockShox Deluxe Select Plus vs X-Fusion O2 PRO), and drivetrain (12-Speed Deore vs 10-Speed Deore).
The T8 is our best selling trail bike - spec’d with higher end components relative to the T7; however, still has the same ALX alloy frame as the rest. If you’re someone who is looking for more premium components straight out of the box, the T8 is an excellent choice. With a complete component upgrade from the T7, the T8 comes with even better brakes (4-piston F/R vs 4/2-piston F/R), rear shock (Fox Float DPS vs RockShox Deluxe Select Plus), and drivetrain (12-Speed SLX vs 12-Speed Deore).
The T9 is the top dog in the T lineup. Spec’d with ultra high-end components and the same ALX alloy frame as the rest, you’ll soon be wondering if you’ll ever need another MTB again. If you’re someone who is performance oriented and wants the creme de la creme, this trail demon is a big step up from the T8. From the stiff and light 36 performance elite fork to the podium producing X2 rear shock, buttery smooth XT drivetrain, and hard-hitting TRP 4-piston brakes, you’ll be kitted out with the best.
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.
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Siskiu T6
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Siskiu T7
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Siskiu T8
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Siskiu T9
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Steel charcoal gloss
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Blue green
Grey
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Golden black
Charcoal black
Purple black
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Forest green black
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| 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 Float X Performance |
| 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 | $2399 | $2799 | $3699 |
| Shop Now | Shop Now | Shop Now | Shop Now |
With over 1500+ positive buyer reviews and numerous industry reviews raving about punching well above its weight, the Polygon Siskiu T is changing the industry standard.
The Polygon Siskiu T is a versatile all-round trail bike. This particular dual suspension mountain bike features 140-150mm up front and 135-140mm in the rear (depending on the size). With a 65 degree head tube angle and a short 425mm chainstay, the T is nimble enough for technical terrain and slack enough for moderately chunky descents.
Yes, but only by 10mm. Any more and the additional forces on the head tube and frame can cause a frame failure.
Yes, but the frame’s suspension is not designed to work with a coil spring’s characteristics; thus, it will not feel supportive or work well past 50% travel stroke.
2.5 - 2.6” is the largest. Please keep in mind that a rear tyre that is too large can make cornering less efficient and can bring a squirmy feeling.
- The T6 is approximately 16.7kg - 36.8lbs
- The T7 is approximately 16kg - 35.2lbs
- The T8 is approximately 15.8kg - 34.8lbs
- The T9 is approximately 16.1kg - 35.5lbs
Seat tubes on the whole range have been significantly shortened to allow for 150mm dropper posts on SM and MD frames, and 170mm on LG and XL.
The Siskiu T is a trail bike and the Collosus N is an Enduro bike. The T is designed to be more versatile (lighter, not as slack, and shorter), whereas the Collosus N is heavier, more slack, and longer - providing you with enhanced stability on gnarlier (steeper & chunkier) terrain.
