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2018 Polygon

Siskiu T7

A 27.5″ aluminum frame full suspension trail bike with high-end components.
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Manufacturer Price

$1,899
FrameAluminum
SuspensionFull, 140 / 150mm
ForkRockShox Recon Silver RL
ShockX-Fusion
Wheels27.5″ Aluminum
Drivetrain1 × 10
GroupsetXT, Deore
BrakesShimano Hydraulic Disc
SeatpostDropper
Learn about Polygon
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Siskiu T7
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

24 mph

Siskiu T7

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
SM

5'2" – 5'8"

MD

5'6" – 5'11"

LG

5'10" – 6'3"

XL

6'1" – 6'7"

🐐 Estimated

Rider Fit Notes

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Reviews

Summary

The Polygon Siskiu trail bike family is praised for its excellent value, offering high-quality suspension and components at competitive prices. Reviews highlight its capable handling and modern geometry, making it a fun and versatile choice for trail riding. However, some models are noted for being on the heavier side and having components that may not meet the expectations of more aggressive riders.

Pros
  • Excellent value for money

  • High-quality suspension package

  • Modern and capable trail geometry

  • Versatile and fun to ride

  • Good component spec for the price

Cons
  • Some models are heavier than competitors

  • Component quality varies across builds

  • Suspension may require tuning for less aggressive riders

  • Internal cable rattle reported

  • Limited wheel size options in certain frame sizes

Key Quotes
The T7, which we have in for review, is even better priced at just $1899.
Bikerumor logoBikerumor
Polygon’s Siskiu T8 is a solid reminder of how fun even low- to mid-range bikes have become.
BikeRadar logoBikeRadar
The Siskiu N9, here, is the hardest hitting bike in the Siskiu line, with 160 or 170mm travel, and angles that have strutted right off the Enduro catwalk.
Flow Mountain Bike logoFlow Mountain Bike
Great frame, disappointing build
MBR logoMBR
Polygon's Siskiu T8 is a great choice for anyone who wants a modern do-it-all trail bike and needs to squeeze the most performance from a limited budget.
Pinkbike

Feedback?

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NSMB
Polygon Siskiu N9 29er - First Impressions

Nov 2019

The Polygon Siskiu N9 29er boasts an SRAM GX drivetrain, Fox suspension, good tires, solid geometry, and a nicely manufactured 160mm travel aluminum frame for 2800 USD.

Read Review

Pinkbike
Review: Polygon Siskiu T8

Sep 2018 · Richard Cunningham

Add this well-outfitted and sharp-handling 29er to your short list of affordable trail bikes.

Highs
  • Lively acceleration and climbing

  • Precise handling and cornering

  • Excellent value

Lows
  • No room for a water bottle

  • Not plush in rough terrain

  • No size small with 29-inch wheels

Read Review

Flow Mountain Bike
Polygon Siskiu N9 - First Impressions

Sep 2018

Polygon have been plugging away solidly over the past few years, building up a tidy contingent of no-nonsense, sharply priced, alloy trail bikes. We’ve reviewed plenty of them over recent times, and we’ve enjoyed watching them get better and better with each iteration, ticking all the boxes that riders demand, but not sending anyone into …

Highs
  • Pricing is very good!

  • Great suspension package.

  • No-nonsense design.

Lows
  • Seems to be a bit of internal cable rattle going on.

  • Both wheel sizes not available in all frame sizes.

Read Review

MBR
Polygon Siskiu D5 review - MBR

Aug 2018 · Alan Muldoon

Yes, the Polygon Siskiu D5 frame is top-notch but the parts spec is lacking. If it was £750 it'd be a steal but it's outclassed by other £1k full sussers.

Highs
  • Super sleek frame design.

Lows
  • No rebound adjustment on shock.

Read Review

BikeRadar
Polygon Siskiu T8 review

Jun 2018 · Russell Eich

Polygon's Siskiu T8 is a fun example of a lower-cost trail bike that's ready to rip

Read Review

Bikerumor
Just In: Polygon Siskiu T fits the wheels to the frame for 27.5 & 29" builds

Nov 2017 · Zach Overholt

It’s almost 2018 and we’re still no closer to settling on one wheel size. Don’t expect that to change any time soon, but what you can expect is new options around every corner. Joining a number of manufacturers who have already offered different wheel sizes for the same model, Polygon is introducing the new Siskiu …

Read Review

Geometry
Specs
Build
Frame

Aluminum

BB StandardBSA, 73mm, Threaded

Fork

RockShox Recon RL Solo Air, 15x110mm Boost axle

Travel150mm

Spring TypeAir

Shock

X-Fusion 02 Pro RL

Travel140mm

Bottom Bracket

BSA threaded

Headset

ZS 44/28.6

Stem

Entity Expert, alloy, 45mm length, 7° rise, 31.8mm clamp

Handlebar

Entity Expert, alloy, 780mm width, 12mm rise, 31.8mm clamp

Saddle

Entity Assault

Seatpost

Tranz-X dropper, 150mm travel, zero offset

TypeDropper

Pedals

Alloy

Groupset
Rear Derailleur

Shimano XT RD-M786, 10-speed, Shadow Plus

Front Derailleur

N/A

Crank

Prowheel Charm, Boost, 2-piece

Shifters

Shimano Deore SL-M6000 I-Spec II

Cassette

Shimano CS-HG500, 10-speed, 11-42 tooth

Chain

KMC X-10

Chain Guide

N/A

Brakes

Shimano BRM365 hydraulic disc

TypeShimano Hydraulic Disc

Brake Levers

Shimano BRM365 hydraulic disc

Wheels
Rims

Entity XL2, 32 hole

Front Hub

Entity XL2 disc, 32 hole, Boost

Rear Hub

Entity XL2 disc, 32 hole, Boost

Tires

Schwalbe Nobby Nic, 27.5" x 2.60" or 29" x 2.35" Addix

Rider Notes
Riders Also Viewed

First added April 14

Last updated April 14

Not listed for 2,969 days