
Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s DealsSISKIU N9
A 27.5″ / 29″ aluminum frame full suspension enduro bike with high-end components.
Compare the full range
Manufacturer Price
$3,399| Weight | 39.9 lbs |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 170 / 170mm |
| Fork | Fox Performance Float 36 |
| Shock | Fox Float DPX2 Performance |
| Wheels | 27.5″ / 29″ Aluminum |
| Drivetrain | 1 × 12 |
| Groupset | XT |
| Brakes | TRP Slate T4 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
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!

Oct 2021 · Jeremy Benson
As the price of bikes continue to skyrocket, Polygon bucks that trend with their direct-to-consumer sales model and the affordable Siskiu D7. This...
Reasonable price
Comes with a dropper post
Fun on a range of terrain
Efficient climber
Playful on descents
Non-boost fork
Some cable rattle over rough terrain
Can be overwhelmed on aggressive trails

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...

Nov 2018
What makes this bike special? It’s not just the price, though at $3699, this one is hard to beat. Even when stacked up against other direct-to-the-consumer brands like YT, this bike holds its own in sheer value for money terms. The frameset is far from revolutionary, all aluminium, with a simple faux-bar suspension system. But …
Smart component choices.
Great fork and shock.
Geometry that most riders will feel instantly comfortable with.
The price, obviously!
Short travel dropper post.
No water bottle mount.

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 AM / ENDURO 170MM TRAVEL (27.5”) / 160MM TRAVEL (29”), TAPER H/T TA BOOST BB Standard: BSA, 73mm, Threaded Color: Radiant Galaxy - Black |
|---|---|
| Fork | FOX PERFORMANCE 36 FLOAT 170MM (27.5”) / 160MM (29”) TRAVEL Travel: 170mm Spring Type: Air |
| Shock | FOX PERFORMANCE FLOAT DPX2 E2E:205X65, 3 POS LEVER, LV EVOL, HARDWARE:8MMX25MM & TRUNNION Travel: 170mm |
| Bottom Bracket | SHIMANO BSA THREADED |
| Stem | RACEFAE AEFFECT R35, ALLOY E:50MM R:0DEG BB:35MM |
| Handlebar | RACEFACE AEFFECT R35, ALLOY W:780MM R:20MM BB:35MM |
| Saddle | ENTITY XTENT |
| Seatpost | DROPEPR POST 150mm (S&M) / 170mm (L & XL) Type: Dropper |
| Pedals | ALLOY FLAT PEDAL W/REPLACEABLE PIN |
| Rear Derailleur | SHIMANO XT RD-M8100 12-SPEED DA |
|---|---|
| Crank | SHIMANO DEORE XT FC-M8100-1 BOOST 12SP 32T 170MM (S-M) 175MM (L-XL) |
| Shifters | SHIMANO XT SLM8100 12-SPEED |
| Cassette | SHIMANO XT CSM8100 12-SPEED 10-51T |
| Chain | SHIMANO CN-M7100 |
| Brakes | TRP SLATE T4 4 PISTON Type: TRP Slate T4 Hydraulic Disc |
| Rims | ENTITY XL2 DISC 35-584 (27.5”) / 35-622 (29”) |
|---|---|
| Spokes | Stainless Steel Spokes |
| Front Hub | Entity, sealed bearings |
| Rear Hub | Entity, sealed bearings |
| Tires | WTB VIGILANTE 27.5”X2.6 / 29”X2.3 |
| Disc Rotors | Shimano SLX SM-RT70, Rotors F/R: 180/180mm |
First added December 22
Last updated December 5
Not listed for 1,274 days