review of the Polygon Siskiu T7 mountain bike

Polygon Siskiu T7 Review. Is It Worth The Price?

2022 Polygon Siskiu T7 Review Summary (Quick Stats)

If you don't have time to read the full article, here is our quick review.

Polygon has come a long way in a few short years. They are now producing exceptional quality mountain bikes, at a price that competes on all levels. The Siskiu T7 is all that an more. If you're looking for a value for money dual suspension MTB, this might be what you're looking for!

Overall Rating: 4.5/5 stars




PRICE (at time of writing)


The 2021 / 22 Polygon Siskiu T7 Dual-suspension bike makes quite an impression. It is one of two trail bikes from Polygon, the other being the slightly more spec'd and expensive ($500 more) Polygon Siksiu T8. The Polygon Siskiu t7 comes ready to hit the hardest trails across Australia!

The Polygon Siskiu T7 is a trailblazing mountain bike that'll have you feeling like the king of trails! Available in either 27.5″ ( 150mm travel) or 29″ (140 mm travel), this bad boy can handle anything out on any of the dirt trails you wish to explore.

The bold yet sleek design, aggressive stance, a record 44 km/h speed, and very capable geometry is not only worth the $2,899 price tag, but it also happens to be one that will turn heads when you're riding by!

In our Polygon siskiu t7 review, we're going to go over the build quality, new changes, the top features you can expect with the siskiu t7 model, and much more!

You may also be interested in our reviews of other Polygon bikes, including the Polygon Cascade 4, Polygon Trid, Polygon Siskiu D7,

Quick Overview:

The Siskiu T is Polygon's most versatile modern trail bike that will have you tackling any mountain challenge with ease. Combining the features of the Siskiu D (Downcountry) mountain bikes and the Siskiu N (Enduro) bikes, the Siskiu T (Trail) is Polygon's most versatile do-it-all trail bike.

Thanks to the high-value specs, and improvements to the frame, geometry, and suspension design, the Polygon Siskiu T is more than capable of handling anything from singletrack trails up through enduro courses if need be!

It's AN Awesome modern trail bike and On Budget!

The siskiu t series bikes are on-budget capable trail bikes made for maximum performance. They provide the perfect balance between an enduro bike, dual-suspension bike, and a recreational cross-country Mtb.

The bike is designed for cruising over any trail without compromise on the frame material, suspension, or components: From rough terrains to gnarly descents and marathon races, it will rip through everything you throw at it.

Don't think the Siskut T7 fits your style? Check out our other reviews of some of the other entry-level trail bike options available from Bicycles Online here. We also have an article on the popular Polygon Bend RV gravel bike.

polygon dual suspension mountain bike

Where to buy a 2021 Polygon Siskiu T7 In Australia?

You can buy a new Polygon Siskiu T bike online from or directly from Polygon.

Read More About Why We Love Bicycles Online.

A few of the reasons it's our favorite site include:

  • they source NEW bikes directly from the manufacturer.
  • They have a bike fit calculator, so you'll never order the wrong size bike.
  • Their shipping is on time, and the bike arrives safely.

If you are looking for a cheaper second-hand option, read our guide on how to safely buy a used bike without losing your hard-earned money.

Unboxing & Installation

The Polygon T7 bike requires the least amount of assembly to get the bike ready to ride. All the tools and instructions are included with the bike components. You'll only need to do some minor assembly and setup, and of course, inflating the tires (you'll need to get a pump as it's not included) before you can get out and ride.

Estimated Assembly Time:

  • 10-15min For those who have assembled bikes before
  • 15-25min – If you've never assembled a bike before, but you are mechanically handy
  • 30-40min – If you've never assembled a bike and have a hard time working with tools.

Polygon Siskiu T7 Dual Suspension Trail Bike – What's New?

Build Quality & Geometry.

The Siskiu T7 trail bike has a modern trail geometry designed to handle high-speed control and playful handling demands.

The 29″ wheel size bike features a 135mm of rear travel that strikes the perfect balance between agility and reliable trail performance especially for those looking to glide at high speed through forest tracks without sacrificing stability even on steep terrain. The 27.5″ bikes come equipped with 140 in the rear to give the riders easy control and acceleration on rugged trails.

“If you're riding technical trails, a dropper post is a MUST!” It opens up a far wider range of riding and comfort without having to manually adjust your seat post up and down.

Unlike most trail bikes, the siskiu t seat tubes are significantly shorter. This allows the 150mm Tranz-X Dropper Seatpost to easily fit in on the small and medium bike frame and the 170mm on large and XL.

The chainstays have also been shortened to ensure that the overall wheelbase isn't too long for general trail riding, therefore, keeping the bike fun and nifty!

Faux Bar Suspension Design

A sound suspension system is a must with a bike this pricey, and Polygon doesn't disappoint.

The Siskiu T7 utilizes the famous, tried, and tested connection-driven single-pivot Faux Bar suspension with a linkage that is built around a One Piece Unibody Pivot Bridge.

“Stiffer, firmer suspension”

The suspension is built to minimize the frame's weight, improve stiffness, and reduce lateral flex of the rear shock under load. This allows for confident yet lively handling performance on uneven, bumpy terrain.

While the bike maintains the previous generation's leverage curve and fluid kinematics nature, the 10% increase in anti-squat boosts pedaling efficiency, it allows for a lighter custom shock tune on the shock to improve suspension travel, climbing efficiency, and small bump compliance.

Besides that, there is considerably less stiction in both the Silver-RL RockShox recon boost fork and the rear DebonAir, Rebound Rockshox Deluxe Select Plus shock, which means you can easily overcome almost all obstacles in your way.

Same face, new muscles

The latest 2021 evolution of the Polygon's Siskiu T7 has seen the development of a new frame designed to make the bike even more elegant and fluid. The overall shape is very similar to its predecessor, same to the single-pivot suspension platform with the seatstays directly driving the rear shock.

The frame features an ultra-light, but durable Hydroformed 6061 Aluminium frame with a slacker head tube angle, internal cable routing, 73mm threaded bottom bracket, rear boost thru-axle, and optimized anti-squat kinematic with progressive suspension ratio.

The seatstay is connected to the frame via a one-piece rocker link to help control the leverage rate, provide lateral rigidity, and decrease side-loading on the shock itself. This gives the bike a poppy supportive nature, makes it feel lighter and extra responsive.

Convenient Water Bottle Mount

The new polygon siskiu t is designed so that a water bottle fits into the front triangle.

The seat tube length is slightly lower than previous models to fit a longer dropper post easily. There is a 150mm dropper on the SM and MD frames and a 170mm dropper on the LG and XL. the rest of the frame also features a threaded bottom bracket, boost spacer, internal cable routing, and integrated chainstay protection.

“Thanks to the updated geometry…”

… the Siskiu T reach has 25 to 30 mm extended reach for all sizes compared to the previous models. A 1′ slacker head angle has also increased the head tube angle. For medium-sized 27.5″ frames, the seat tube angle is 65 degrees and 65.5 degrees for the 29″ frames. The chainstay length has also been shortened by about 5mm to help maintain agility on the track.

lady riding MTB on bike trail

Wheel Fit Size System

The new update on the wheel fit size system is an awesome upgrade to the Siskiu T7 frame. Each frame is perfectly paired to the millimeters with the correct size that best fits the rider's height. This sets them up for optimal efficiency & power transfer.

If you are tall, about 6'1 like I am, you will gladly appreciate the boost axles and the fast-rolling abilities of the WTB Trail 29×2.4″, TCS Light, and you've got a monster that will tremendously eat up any trail obstacles at incredible speeds. The Entity Xpert handlebar is just at the right height and length and is quite snippy, making it easy to maneuver in tight, less used trails.

“If you love fat tires…”

While the chainstays might have been shortened slightly, there's still sufficient space and clearance to fit in chubby 2.6in tires.

What size Polygon Siskiu T7 should I get?

Polygon Siskiu T bikes are available in different wheel sizes:SM (27.5″), MD (27.5″), MD (29″), LG (29″), XL (29″). To make sure you get the correct and comfortable bike wheel size, measure your height and use the below chart to find the correct bike for your height:

Rider Height (cm) Rider Height (in) Frame Size

148cm – 158cm 4'10” – 5'2″ XS

158cm – 168cm 5'2″ – 5'6″ S

168cm – 178cm 5'6″ – 5′ 10″ M

178cm – 185cm 5'10” – 6'1″ L

185cm – 193cm 6'1″ – 6'4″ XL

193cm – 198cm 6'4″ – 6'6″ XXL

Ride impression

The polygon Siskiu t gives the rider an aggressive riding position.

The stable wheelbase and the relatively tall front-end combination give you the confidence to charge into any bike trail in Australia.

However, finding a sweet spot with the Siskiu's suspension set up as the rear shock is sort of temperamental.

You have to play around with the Rebound & Compression Adjuster if you want to iron out most of the trails chatter and gain an unbreakable grip in the turns. It might seem tedious if you have no experience with this, but it gets better with practice.

Once you dial in and find the perfect balance, the bike performs a lot better and handles big hits and small with confidence. The naturally aggressive position combined with the frame geometry and extra travel gives you an advantage when things get steep and fast.

High-Quality Tektro Brakes

For every avid mountain biker, the brakes are just as important as any other components.

A high-quality brake set gives you the confidence to ride faster. And no, it doesn't mean throttling down the hills at Grand Canyon at ridiculously high speeds thinking that a four-piston will save you. Rather, a good braking set gives you the confidence to ride faster, of course, and also be more fluid with the turns and curves.

“Better brakes will allow you to ride faster.”

The siskiu t7 comes equipped with top-quality Tektro HD-M735 hydraulic disc brakes designed to offer superior braking power in all weather conditions and provide great modulation too. The high power and controllable braking system uses four front pistons and two rear piston calipers with 180mm Shimano Centerlock rotors.

Note: more stopping power isn't always the best.

For instance, weight and lever feel are the greatest variables for a cross-country racer or rider. For a downhill demon, then speed modulation is the greatest variable, followed by the brakes stopping power.

Pro's & Con's Of the Polygon Siskiu T7


  • The Polygon Siskiu T7 is a relatively affordable bike considering its technical specifications and features.
  • It's great for the weekend warrior who loves to explore harsh trails as well as new riders looking to get their first full dual-suspension mountain bike.
  • The siskiu t has a good geometry for descents with good control over the front wheel in turns.
  • The geometry gives you a lot of stability at control while descending at high speeds and while cornering.
  • It's an awesome bike! The attractive new paint scheme options offer a trail bike that's definitely worth a look.
  • The 12-speed Deore drivetrain shifts AMAZING. Its 510% gear range delivered massive power to rip up any trail.
  • A regular-sized water bottle cage easily fits in the mainframe triangle!


  • The tires are okay but could certainly be better. But you can upgrade to something more aggressive, and be sure that this bike will rip!! In stock form, though, it's only good for cruising around regular Mtb trails but not charging through steep downhill.
  • The first ride on the fork feels a little bit pogo-ey. You can find a perfect balance at around 25-30% sag. If you are a pro and feel like you need an upgrade, a lightly used Fox 34 Rhythm is attainable for about $400, and you'll still keep the total cost below the siskiu T8 series.
  • Tektro brakes have enough power to lock the wheels, but they are just a tard hard to use and will definitely take a lot more effort to break them in and achieve a fluid bite. The levers might leave your hands sore if you ride downhill frequently. That said, once you repeat the bedding process a few times, the brakes will work perfectly.
  • For the price, the seat should really have been better.

2021 Polygon Siskiu T7 Specs Rundown:

Frame Components: ALX Trail 6061 Aluminium Frame with a 140mm (27.5″) / or 135mm (29″) Travel, tapered head tube, Internal Routed Gear & Dropper Cables, 73mm Threaded Boost BB, 148x12mm Boost Thru-Axle, ISCG05 Mount

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

Rear Shocks: RockShox Deluxe Select Plus, DebonAir, Rebound, 2-Position Compression, Custom Tune, E2E: 210x55mm, Hardware: M8x25mm

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

Handlebar: Entity Xpert, Alloy, 780mm; (STEM) Entity Xpert, Alloy 35mm

Saddle: Entity Xtent Saddle

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

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

Bottom Bracket: BSA Threaded, 73mm

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

Rear Derailleur: Shimano Deore RD-M6100 12-Speed

Shifting Lever: 12-Speed Shimano Deore SL-M6100

Chain: KMC X12 and Alloy Flat pedals with Pins

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

Rotor: Shimano SM-RT54 180mm, Center-Lock

Tyre: WTB Trail Boss G2 27.5×2.4″ / 29×2.4″, TCS Light/Fast Rolling,Tri-Tec Triple Compound, Aramid Bead, Slash Guard Sidewall Protection,

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

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

Available in attractive new paint schemes: Maximum Blue Green – Lime / Blue Green – Sheen Green – Black

Weight: 15.4 KG (29″ M)

Bottom Line

The Polygon siskiu is one of the best bikes you can buy in 2021. It's built for bikers who ride hard and fast. It offers incredible characteristics, and it's a superb option for those looking to get into enduro racing. The bike is designed to endure more adventurous routes frequently without breaking down. We'd definitely recommend it for riders who love to spend hours exploring long mountain bike trails.

Polygon Siskiu T7 Review: FAQ's

Is The Polygon Sisku T7 Trail Bike Worth It?

The siskiu t7 model is an excellent choice for those looking to ride longer, faster, and steeper than ever before. The short offset forks, longer frame reach, and steep seat angle guarantee maximum control and stability to speed on steeper trails or any other terrain you choose to explore!

The t7 is a fun-filled machine perfectly made for new and seasoned riders. It's a fantastic entry-level bike for your first enduro race and any other mountain biking adventure you wish to explore.

brand new siskiu t7 2022

Does the Polygon Siskiu T7 have a dropper post?

Yes, the polygon t7 bike offers generous dropper post lengths that are guaranteed to keep you comfortable on the trail or the road. The bike features a longer reach and slacker head tube angle and a shorter seat tube to accommodate a 150-170mm travel dropper post.

The dropper also features a remote lever designed to make it easy to adjust and find the optimal saddle height for confident descending and efficient pedaling.

Is Polygon a good bike brand?

Polygon bikes have a wide range of high-performance bikes well suited to cater to different types of riders' preferences and requirements. They're made with sturdy, high-quality modern frames and have an encompassing progressive geometry. As a result, they offer riders plenty of confidence for tackling anything from mountain trails, casual road trips, or even commuting!

How much is the Polygon Siskiu T7?

The NEW Polygon Siskiu T7 is typically priced at around $2,899. Our preferred and vetted seller is Bicycles Online.

How much travel does the Siskiu T7 have?

The Polygon Siskiu T7 has a 150mm front travel on the S (27.5″) bike and 140mm on the slightly larger M (29er). The rear travel is 140mm on the S (27.5″) and 135mm on the M (29″).

How much does the Siskiu T7 weigh?

A stock 2021 Polygon Siskiu T7 weighs 15.4 KG/ 34 lb.

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