
Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s DealsSISKIU T8
A 27.5″ / 29″ aluminum frame full suspension trail bike with upper mid-range components.
Compare the full range
Manufacturer Price
$2,599| Weight | 33.5 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 140 / 150mm |
| Fork | Fox Rhythm Float 34 |
| Shock | Fox Float DPS Performance |
| Wheels | 27.5″ / 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | SLX |
| Brakes | Tektro Hydraulic Disc |
| Seatpost | Dropper |
5'0" – 5'5"
5'3" – 5'9"
5'7" – 6'1"
5'11" – 6'5"
None yet.
Do you have this bike? Help other riders make a decision about which size will work for them by sharing your own size and fit notes.
Summary
The Polygon Siskiu trail bike family is celebrated for its modern geometry, excellent value, and versatile performance across various terrains. Reviews highlight its efficient climbing, playful descending, and plush suspension, making it a standout in its price range. While some components like brakes and suspension sophistication are noted as areas for improvement, the overall package is praised for its capability and fun factor.
Modern trail bike geometry
Excellent value for the price
Plush and active suspension
Efficient climber
Playful and confident descender
Resin-only brake rotors limit braking power
Suspension platform could be more sophisticated
Some components may require upgrades for aggressive riding
Seriously, this has got to be the best $2,500 bike we’ve tested to date.
The Siskiu T8’s most endearing trait is just how playful it is on the trail.
The reasonably priced Siskiu D7 is an excellent, affordable option to consider.
My kid said he had never had so much fun on a bike in his life.
Feedback?
View all reviews

Sep 2022 · Jeremy Benson
The Polygon Siskiu T8 is an excellent mid-travel trail bike offered at a reasonable price. Polygon's consumer-direct sales model helps keep it affordable...
Awesome build for the price
Versatile
Well-rounded performance
Firm grips
Saddle shape
Dec 2021 · Ryan Palmer
Possibly the best $2,500 bike we've ever ridden.
Fully capable, modern trail bike geometry
Excellent parts spec for the price
Internal cable routing
Resin-only brake rotors create weak braking
Suspension platform isn't very sophisticated

Oct 2021 · Kelly Jorgensen
An affordable full suspension 24" kids mountain bike? The Polygon Siskiu D24 is a perfect blend of price and performance. Read the review!

Jan 2021
Polygon's updated Siskiu T is proof that you don't have to spend the earth to get a very capable trail bike. Featuring on-trend geometry, a robust build kit and a host of improvements over the old model, the Siskiu T8 will have you questioning why you'd need to spend any more.
Exceptionally capable package for the money
Confidence-inspiring geometry
Grippy high-volume rubber
Supple & supportive suspension
Sporty handling for a tough trail bike
Handlebars need more sweep
Brakes aren't hugely powerful
The wheels ain't light

Dec 2020
POLYGON SISKIU T8 REVIEW TESTING THEN UPGRADING A BUDGET-MINDED BIKE The Polygon Siskiu T series bikes are some of the best looking, affordable dual suspension mountain bikes on the market and we get lots of questions about them. Several months back we actually made a really

Aug 2020 · Zach Overholt
Looking for a full suspension mountain bike you can actually afford? The Polygon Siskiu T just got overhauled, and it looks good.

Feb 2020
Polygon's 160mm aluminum 29'er looks to deliver value and performance and shows potential for 2800 USD...

Sep 2018 · Richard Cunningham
Add this well-outfitted and sharp-handling 29er to your short list of affordable trail bikes.
Lively acceleration and climbing
Precise handling and cornering
Excellent value
No room for a water bottle
Not plush in rough terrain
No size small with 29-inch wheels
| Frame | ALX TRAIL FRAME 140MM TRAVEL (27.5”) / 135MM TRAVEL (29”), TAPER H/T BB Standard: BSA, 73mm, Threaded Color: Purple Black |
|---|---|
| Fork | FOX 34 RHYTHM BOOST 15X110MM, 150MM (27.5”) / 140MM (29”) TRAVEL Travel: 150mm Spring Type: Air |
| Shock | FOX FLOAT DPS SPECIAL TUNING E2E:210X55MM, HARDWARE:8MMX25MM Travel: 140mm |
| Bottom Bracket | BSA THREADED |
| Stem | ENTITY XPERT, ALLOY E:35MM R:7DEG BB:35MM |
| Handlebar | ENTITY XPERT, ALLOY W:780MM R:20MM BB:35MM |
| Saddle | ENTITY XTENT |
| Seatpost | DROPEPR POST 150mm (S & M) / 170mm (L & XL) Type: Dropper |
| Pedals | - |
| Rear Derailleur | SHIMANO RD-M7100 SLX |
|---|---|
| Crank | SHIMANO FC-MT510-1 BOOST 32T 170MM (S-M)/175MM (L-XL) |
| Shifters | SHIMANO SL-M7100-R SLX |
| Cassette | SHIMANO CS-M7100-12 SLX 10-51T |
| Chain | KMC X12 12SPEED |
| Brakes | TEKTRO HD-M745 4 PISTON Type: Tektro Hydraulic Disc |
| Rims | ENTITY XL2 DISC 584-35 (27.5”) / 622-35 (29”) |
|---|---|
| Tires | PERFORMANCE TIRE, 27.5”X2.40” / 29”X2.40” |
First added May 12
Last updated April 5
Not listed for 1,518 days