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- Polygon Siskiu T8 - Mountain Bike
























Description

ANY TRAIL, ANY RIDER!
The Siskiu T is Polygon's do-it-all trail bike for riders of all levels. From flowy singletrack to technical features, this bike is designed to conquer any trail you encounter. With a lightweight alloy frame, 135/140mm of rear travel, and size-specific wheel sizes, it's both nimble and stable, providing a comfortable and confidence-inspiring ride.

ULTIMATE VALUE
Don't let the price fool you - the Siskiu T delivers high-performance features typically found on more expensive bikes. Modern geometry, quality air suspension, a 1x drivetrain, and a dropper post give you the tools to climb with ease and attack the descents. Experience the thrill of modern trail riding without breaking the bank.

A TRUSTED BRAND
Polygon is a factory-direct brand with over 30 years of experience crafting high-performance bikes at competitive prices. Vertically integrated manufacturing ensures quality and cost savings. Their mountain bikes have been tested on the world stage at events like Redbull Rampage and the World Cup circuit, boasting a 5-year frame warranty for peace of mind.

FOX 34 RHYTHM FORK
Experience 150/140mm of air-sprung travel for a smooth and controlled ride. Its Grip damper and adjustable rebound provide a responsive feel on the trail. Add or remove volume spacers to fine-tune bottom-out resistance.

FOX FLOAT DPS SHOCK
The Fox Float DPS Performance Series EVOL LV offers a 2-position lever for quick Open and Lock adjustments. With its EVOL air spring, rebound adjuster, and volume spacers, it delivers enhanced tuning and fine-tuned progression for optimal ride quality.

ONE-PIECE LINK
Sometimes simple is better! The linkage-actuated single pivot offers active and progressive suspension making for a supple ride on technical sections and a playful ride on flow trails, while the one-piece pivot bridge reduces flex and saves weight.

SHIMANO SLX 1X12 DRIVETRAIN
The 12-speed drivetrain is paired with a Sunrace 11-51T cassette, giving you a +500% gear ratio and features Shadow+ technology.

WHEELSIZE FIT
The perfect fit for all riders. Smaller sizes come in 27.5" for nimble handling and a lower standover. Medium riders can choose between 27.5" or 29" wheels, while larger sizes get the added stability and rollover of 29" wheels.
Components
FRAMESET
SUSPENSION
DRIVETRAIN
BRAKES
WHEELS
CONTACT POINTS
WEIGHT
*Specs are subject to change based on availability
Geometry
Frame Size | S (27.5") | S (29") | M (27.5") | M (29") | L (29") | XL (29") |
Height (cm) | 5'2"-5'6" | 5'2"-5'6" | 5'6"-5'10" | 5'6"-5'10" | 5'10"-6'1" | 6'1"-6'5" |
(A) Frame stack | 593.5 | 594.0 | 607.1 | 607.6 | 621.2 | 634.9 |
(B) Frame reach | 440 | 440 | 460 | 460 | 480 | 500 |
(C) Head tube angle | 65° | 65.5° | 65° | 65.5° | 65.5° | 65.5° |
(D) Head tube length | 105 | 90 | 120 | 90 | 105 | 120 |
(E) Seat tube angle | 71° | 70.5° | 71° | 70.5° | 70.5° | 70.5° |
Effective seat tube angle | 76.5° | 76.5° | 76.5° | 76.5° | 76.5° | 76.5° |
(F) Seat tube length | 385 | 385 | 400 | 400 | 415 | 430 |
(G) Effective top tube | 582.5 | 583.0 | 605 | 605.9 | 629.1 | 652.4 |
(H) BB Height | 335 | 335 | 335 | 335 | 335 | 335 |
(I) BB offset | 20 (Drop) | 39 (Drop) | 20 (Drop) | 39 (Drop) | 39 (Drop) | 39 (Drop) |
(J) Chainstay length | 425 | 430 | 425 | 430 | 430 | 430 |
(K) Wheelbase | 1172.8 | 1173.5 | 1199.1 | 1193.5 | 1219.7 | 1245.9 |
(L) Standover height | 690 | 695 | 695 | 700 | 710 | 720 |
Front Travel | 150 | 140 | 150 | 140 | 140 | 140 |
Rear Travel | 140 | 135 | 140 | 135 | 135 | 135 |
Dropper Post Travel | 150 | 150 | 150 | 150 | 170 | 170 |
Maximum Tyre Width | 2.6" | 2.6" | ||||
Maximum Chainring Size | 36T | 36T |
* All lengths in mm
Assembly
As a guide, it'll take 10-40min depending on whether you're an experienced bike assembler or have little to no mechanical experience.
Side Note: Your cables will stretch during the initial bed-in period and must be adjusted by an experienced mechanic around 150km of riding.
Unboxing Your Bike
Dial In Your Suspension Setup
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check
Unboxing Your Bike
Dial In Your Suspension Setup
Dial In Your Bike Fit
Dial In Your Tyre Pressures
Pre-Ride Check

Polygon Siskiu T8 - Mountain Bike
Short Description
Shipping








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Excellent bike
Anyone looking for capable full suspension bike for a great price - look no further.

Downhill Therapist
The geometry? Slacker than your cousin on unemployment, but in a way that actually helps.

T8
Awesome, a really response bike. Fast and nimble, does what I want it too!

Excellent mountain bike.
I was looking online for a new mountain bike a few months ago. That is when I came across this Polygon Siskiu T8. I didn't want to spend $5k for a new bike and this would be perfect for me. So, I bought the T8 and it has been a really great trail bike. The order process was so easy and bikesonline kept me updated. I ordered it and received it 5 days later on a rainy Thursday. I really like the Polygon bikes, and I think I will be sticking with them for the foreseeable future. And ordering them through bikesonline.