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Today’s Deals2018 Polygon
Siskiu D8
A 27.5″ aluminum frame full suspension trail bike with upper mid-range components.
Compare the full range
| Frame | Aluminum |
|---|---|
| Suspension | Full, 120 / 120mm |
| Fork | RockShox Recon Gold RL |
| Shock | RockShox Monarch RT |
| Wheels | 27.5″ Aluminum |
| Drivetrain | 2 × 11 |
| Groupset | XT, SLX |
| Brakes | Shimano Hydraulic Disc |
5'2" – 5'8"
5'6" – 5'11"
5'10" – 6'3"
6'1" – 6'7"
🐐 Estimated
None yet.
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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.
Excellent value for money
High-quality suspension package
Modern and capable trail geometry
Versatile and fun to ride
Good component spec for the price
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
The T7, which we have in for review, is even better priced at just $1899.
BikerumorPolygon’s Siskiu T8 is a solid reminder of how fun even low- to mid-range bikes have become.
BikeRadarThe 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 BikeGreat frame, disappointing build
MBRPolygon'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
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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.
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
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.
Super sleek frame design.
No rebound adjustment on shock.
Jun 2018 · Russell Eich
Polygon's Siskiu T8 is a fun example of a lower-cost trail bike that's ready to rip
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 …
Jan 2016
The Siksiu D8 is Polygon’s aluminium frame 27.5″ wheel dually with 120mm of suspension travel, purchased online from Bicycles Online and shipped to your door. Buying a bike from a website isn’t a new thing, and it sure does comes with the typical drawbacks, but Bicycles Online do their best to ensure the process is …
Reliable and sound performer.
Qualified and ready for real off road riding.
Great spec for the dollars.
'Pro Build' assembly available for $99.
Online sale only.
Prefers to play around than race around.
Would benefit from a tubeless conversion.
| Frame | Aluminum BB Standard: BSA, 73mm, Threaded |
|---|---|
| Fork | RockShox Recon Gold, Solo Air, with remote, tapered steerer Travel: 120mm Spring Type: Air |
| Shock | RockShox Monarch RT, 190mm x 51mm Travel: 120mm |
| Bottom Bracket | Shimano integrated BSA |
| Headset | FSA No. 57B, taper ID: 44/56mm |
| Stem | Entity Xpert, alloy, 60mm length |
| Handlebar | Entity Xpert, alloy, 740mm width |
| Saddle | Entity Assault, CrMo rail |
| Seatpost | Entity Xpert, alloy, 350mm length Type: Rigid |
| Pedals | VP Component VP-195E, alloy |
| Rear Derailleur | Shimano Deore XT RD-M8000-GS, 11-speed |
|---|---|
| Front Derailleur | Shimano SLX FD-M7020-H |
| Crank | Shimano SLX FC-M7000-11-2, 170mm length (S/M), 175mm (L/XL) |
| Shifters | Shimano SLX SL-M7000, 2x11, I-Spec |
| Cassette | Shimano SLX CS-M7000, 11-42 tooth, 11-speed |
| Chain | KMC X-11 |
| Chain Guide | N/A |
| Brakes | Shimano BR-M447 Type: Shimano Hydraulic Disc |
| Brake Levers | Shimano BL-M506 |
| Rims | Mavic Crossride |
|---|---|
| Front Hub | Mavic Crossride |
| Rear Hub | Mavic Crossride |
| Tires | Schwalbe Smart Sam, 27.5" x 2.25" |
First added April 14
Last updated April 14
Not listed for 2,969 days