2018 Polygon Siskiu T7 Dual Suspension Mountain Bike

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Building on the tremendous success of the Polygon Siskiu D range over the past few years, we are excited to introduce the new 2018 Polygon Siskiu T7 - a beefed up, trail ready, bigger travel shred machine which is efficient enough for epic rides in the mountains and responsive enough to challenge friends on hot laps around the local loop.  The Polygon Siskiu T7 is the bike you've been waiting for and it comes with all the parts and clever technology you'd expect from Polygon, like the frame size specific 29er or 27.5" wheels, internal dropper post, Rockshox front fork suspension and a 1x10 drivetrain. This is truly a shred-ready bike out of the box. 
The  Siskiu  T is built around a new lightweight, hydroformed 6061 aluminium Boost frame and longer 140mm (29er) / 150mm (27.5") travel. By utilising a one piece linkage system, Polygon have been able to keep the frame weight down whilst reinforcing high-stress areas and reducing flex under heavy loads. The rear swing triangle also features a unibody pivot bridge that stiffens the rear wheel and provides you a lot more control when exiting high-speed corners and negotiating rock gardens. The Boost design means that Polygon have been able to include wide 29mm rims with 2.6" tyres (27.5" wheel) and 2.35" tyres (29" wheel). The frame is finished off with a tapered headset, rear thru axle, and internal routing for gears, brakes and 150mm dropper post.
The Siskiu T series utilises Polygon's new Wheel Fit Size System whereby each frame size is paired with the wheel size that best fits the rider and sets them up for optimal efficiency and power transfer. We pair 29er wheels with 18.5" and larger bikes, and more proportional, better-fitting 27.5 inch wheels for 17.5" and smaller bikes.
Keeping with trends, the Polygon Siskiu T7 comes equipped with a neat and simple 1x10 drivetrain, further improving bike performance and reducing chain slap on rougher trails. A Shimano XT rear derailleur features a clutch system that operates flawlessly paired with a massive 42T Shimano rear cassette providing plenty of range to glide up those steep climbs. The Prowheel crankset is a 2 piece unit and comes with a chain retention (narrow-wide) chainring, eliminating the need for a bulky chain guide and continuing the clean looks of the bike.
Keeping you glued to the ground, a Rockshox Recon RL front air fork paired with the X-Fusion O2 Pro rear shock read the trail pro-actively whilst you focus on selecting the best line. The bike rolls on a pair of wide 29mm rim Entity XL2 tubeless ready wheels and Schwalbe Nobby Nic tyres with a nice and wide 2.35" to 2.6" width giving you loads of traction for climbs and hitting the berms.
Rounding off the Polygon Siskiu T7 is a Tranz-X 150mm dropper seat, Entity Xpert cockpit and Shimano MT365 Hydraulic Disc Brakes. If you're looking for a bike to do it all with killer style and a dependable, high quality, trail ready components list, then the Siskiu T7 is the bike for you.
Key Features
  • AL6 Alloy Boost Trail frame with 150mm (27.5") / 140mm (29") of suspension travel (internal routed)
  • Tapered Head Tube
  • Rockshox Recon RL Solo Air Boost fork
  • X-Fusion O2 Pro rear air shock with 2 position compression rebound adjustment
  • 1 x 10 Shimano Deore XT drivetrain
  • Tranz-X 150mm Dropper seat post
  • Entity XL2 wheelset with Schwalbe Nobby Nic tyres.
  • 5 Year Warranty on frame
  • Full manufacturer’s warranty on parts



Check out the link below for a review of the 2018 Polygon Siskiu T8 by Flow Mountain Bike:

Model Comparison Chart


Siskiu T7

Siskiu T8


AL6 Alloy Boost Trail frame with 150mm (27.5") / 140mm (29") of suspension travel (internal routed), Tapered headtube

AL6 Alloy Boost Trail frame with 150mm (27.5") / 140mm (29") of suspension travel (internal routed), Tapered headtube


Rockshox Recon RL Solo Air Boost fork, Travel 150mm (27.5") / 140mm (29") External rebound, low speed compression15mm  thru  axle

Rockshox Revelation RC Debon Air Boost fork, Travel 150mm (27.5") / 140mm (29"), External rebound, low speed compression, 15mm thru axle (new 35mm stiff and lightweight chassis derived from Pike)


X-Fusion O2 Pro rear air shock with 2 position compression rebound adjustment

Rockshox Deluxe RT3 air shock with external rebound and 3 position compression

Drivetrain Shimano XT / Deore Shimano Deore XT /  SLX
Speed 1 X 10 Speed 1 X 11 Speed
Brakes Shimano M365 Hydraulic Disc Brakes Shimano Deore BR-MT500 Hydraulic Disc Brakes
Wheelset Entity XL2 Disc 29-584 (27.5”) / 29-622 (29”), tubeless ready Entity XL2 Disc 29-584 (27.5”) / 29-622 (29”), tubeless ready
Weight 14.2kg 13.7kg
Price $2,299 $2,999

Tranz-X 150mm Dropper seat post

Tranz-X 150mm Dropper seat post

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