
Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices
Today’s DealsSISKIU D7
A 27.5″ / 29″ aluminum frame full suspension trail bike with upper mid-range components.
Compare the full range
Manufacturer Price
US$1,739($2,981)| Weight | 16.4 kg |
|---|---|
| Frame | Aluminum |
| Suspension | Full, 120 / 120mm |
| Fork | RockShox Recon Silver RL |
| Shock | RockShox Deluxe Select+ |
| Wheels | 27.5″ / 29″ Aluminum |
| Drivetrain | 1 × 11 |
| Groupset | Deore |
| Brakes | Shimano Hydraulic Disc |
| Seatpost | Dropper |
152cm – 165cm
162cm – 175cm
172cm – 185cm
182cm – 195cm
Summary
The Polygon Siskiu trail bike series is praised for its modern geometry, competitive pricing, and improved specifications, making it a strong contender in the affordable trail bike market. Reviews highlight its effective rear suspension and trail-ready handling, though some models suffer from subpar fork performance and component limitations. The Siskiu stands out for its value, offering features like dropper posts and quality drivetrains at lower price points than many competitors.
Modern, well-considered geometry
Competitive pricing with improved specifications
Effective rear suspension with good progression
Dropper post included at affordable price points
Quality drivetrains and brakes in higher models
Subpar fork performance in some models
Component choices limit the bike's potential
Uncomfortable stock saddle and grips
Limited water bottle mounting in some frames
Heavy weight with 29in wheels in certain builds
The bike seemed to offer more performance than the price would imply, and it seemed like a platform worthy of future upgrades.
Putting together well-appointed bikes for less money than its big-name competitors is a game that Polygon plays exceedingly well.
The potential that's unrealized with this bike is both impressive at the price and depressing at the same time.
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!
Low price point for full suspension with modern geometry
Lightweight for price and build
Tune-able air sprung fork (with lockout) and rear shock
Thru-axles for increased stiffness and rigidity
Internal routing for dropper post
1x trigger shifters for quick and easy shifting
Pre-taped tubeless ready rims
Mechanical disc brakes not ideal
Does not come with tubeless ready tires (only rims)

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.

Jun 2020
With its sub-$2K price tag, the Polygon Siskiu D6 aims to break the normal rules in the hardtail vs full suspension debate. Featuring a dropper post, progressive geometry, and a new frame that will take a water bottle, there's a lot to like. But is it too good to be true? Read on for our Polygon Siskiu D6 review.
Fantastic trail-ready geometry
A dropper post at this price? So good!
Nice under-bar dropper lever
Smooth and reliable Shimano brakes
Bonkers price
The fork-shaped object
Quick-release front axle
Handlebar needs more sweep
Brake levers & shifter don't quite line up

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

Sept 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 XC 120MM TRAVEL (27.5”) / 120MM TRAVEL (29”), TAPER H/T TA BOOST Color: Blue / Purple / Black |
|---|---|
| Fork | ROCKSHOX RECON RL, 15X100MM, 120MM (27.5”) / 120MM (29”) TRAVEL Travel: 120mm |
| Shock | ROCKSHOX DELUXE SELECT PLUS E2E: 190X45MM METRIC, HARDWARE: M8X25MM Travel: 120mm |
| Bottom Bracket | SHIMANO DEORE |
| Stem | ENTITY XPERT, ALLOY |
| Handlebar | ENTITY XPERT, ALLOY |
| Saddle | ENTITY VOID SADDLE |
| Seatpost | TRANZX DROPPER 150mm (27.5") / 170mm (29") Type: Dropper |
| Pedals | - |
| Rear Derailleur | SHIMANO DEORE RD-M5100 |
|---|---|
| Crank | SHIMANO DEORE FC-M5100 32T |
| Shifters | SHIMANO DEORE SL-M5100, 1x11SPEED TRIGGER |
| Cassette | SHIMANO DEORE CS-M5100 11-51T |
| Chain | KMC X11-1 |
| Brakes | SHIMANO MT200 HYDRAULIC DISC BRAKE Type: Shimano Hydraulic Disc |
| Rims | ALLOY DOUBLE WALL 32H |
|---|---|
| Tires | SCHWALBE NOBBY NIC PERFORMANCE 27.5"x2.25" / 29"x2.25" |
First added 11 March
Last updated 22 April
Not listed for 1,878 days