Black POLYGON Siskiu D7 27.5” Full Suspension Mountain Bike image 1
Black POLYGON Siskiu D7 27.5” Full Suspension Mountain Bike image 2
Black POLYGON Siskiu D7 27.5” Full Suspension Mountain Bike image 3
Black POLYGON Siskiu D7 27.5” Full Suspension Mountain Bike image 4

Key featuresexpand_more

Polygon’s approach to mountain bike design is, first dial-in the geometry, then use top-spec branded components where it makes a difference. The result with the Siskiu D7 is one of the best value for money short-travel full-sus bikes on the market

This 27.5-inch wheel bike is playful and agile and wants to catch air off every feature along the trail. Its (comparatively) relaxed geometry and a good amount of reach make it a credible descender too.

Front and rear suspension is taken care of by RockShox, a company that has been dedicated to perfecting bike suspension for more than 30 years. The 120mm Recon RL fork blends the advantages of air sprung performance with easy set-up.

On the climbs, a steep seat tube angle puts you in a comfortable position to efficiently power up the hills. The suspension kinematics have been revised for imporved anti-squat on this latest D7 model too, meaning minimal energy loss through pedal bob and suspension movement. And, if you need even more efficiency, the fork and shock have compression adjustment for a locked-out feel.

The Polygon Siskiu D7 is a great value all-rounder for UK trails. Its well-matched, mid-range components find the happy balance between price and performance.

Feature Highlights

  • 6061 butted aluminium frame – A strong and lightweight aluminium alloy frame with dependable weld integrity.
  • 120mm RockShox Recon RL fork– Great value air-sprung suspension that’s easy to set up.
  • Shimano Deore 1x11 drivetrain – All the gears you will ever need in a smooth shifting package with no chain slap.
  • Shimano MT201 hydraulic disc brakes - Powerful, reliable, easy to maintain stopping power from the market leaders.
  • 150mm TransX dropper seat post – A reliable hydraulic dropper post with 150mm of travel. Puts the saddle exactly where you need it
  • Nobby Nic tyres – A true all-mountain tyre from Schwalbe to take on XC tracks and technical trails.

About Polygon

Polygon is a world-renowned bike manufacturer with over 25 years of cycling expertise. Producing close to a million bikes at a state-of-the-art manufacturing facility, Polygon’s commitment to innovation and craftsmanship has picked up numerous industry awards.


  • Entry level all-round trail 27.5” mountain bike
  • Frame: ALX XC 120mm Travel (27.5”) Taper H/T QR Boost
  • Dropout: Alloy Thru Axle Dropout
  • Fork: RockShox Recon RL, 15x100mm, 120mm (27.5”) Travel
  • Rear Shock: RockShox Deluxe Select Plus E2E: 190x45mm Metric, Hardware: M8x25mm
  • Handle Bar: Entity Xpert, Alloy
  • Stem: Entity Xpert, Alloy
  • Grips/Bar Tape: Entity Rubber Grip W/ Lock Ring
  • Head Set: Threadless Zero Stack Headset
  • Saddle: Entity Void Saddle
  • Seat Post: Dropper Post 150mm
  • Seat Clamp: Bolt Seat Clamp
  • Chain Set: Shimano Deore FC-M5100 32T
  • BB Set: Shimano Deore
  • Chain: KMC X11-1
  • Cassette: Shimano Deore CS-M5100 11-51T
  • Shifting Lever - Right: Shimano Deore SL-M5100, 1x11 Speed Trigger
  • Rear Derailleur: Shimano Deore RD-M5100
  • Front & Rear Tyres: Schwalbe Nobby Nic Performance 27.5”x2.25”
  • Rims: Alloy Double Wall 32H
  • Front Hub: Shimano Front Hub
  • Rear Hub: Shimano Rear Hub
  • Through Axel: Alloy Thru Axle Dropout
  • Front & Rear Brake: Shimano MT200 Hydraulic Disc Brake

Order your bike to be delivered to your home or collect it from a GO Outdoors store to access some great benefits.

Please Note: Due to ongoing issues in the supply chain, this bike is subject to specification changes without notice. Any changes made will be using equivalent or higher quality parts.

**Some minor assembly is required. Consult our assembly guide for assistance.

Unfortunately, we are not able to process faulty or warranty bike returns through our warehouse. If your bike develops a fault, please take it to your nearest GO Outdoors store where we have a full workshop and trained mechanics who will be able to assist you.

Please note, this excludes Hathersage and Southport stores.

Delivery & Returnsexpand_more

This product qualifies for the following delivery methods.

Standard Delivery (FREE)

A tracking link will be provided once your order is despatched.


Returning orders to us is easy. Whatever your reason, we offer a refund or exchange within 28 days of delivery or collection.

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