The Polygon Siskiu D7 is an all-round XC trail full suspension bike engineered to take on the trail from local stomping grounds to all-day mountain adventures further afield. Built around a lightweight aluminium suspension frame, the Siskiu D7 has modern geometry, slacker head tube angle, longer reach, lower BB and shorter chain-stay. Shimano hydraulic disc brakes ensure excellent stopping power and this model is offered in 27.5″ wheel size with dropper posts. The 120mm suspension has a one-piece linkage system reducing flex in rear triangle.About PolygonPolygon are a world-renowned bike manufacturer with over 25 years of cycling expertise. Producing close to a million bikes a year out of their state-of-the-art manufacturing facilities, their commitment to innovation and craftsmanship has seen them pick up numerous industry awards and become the brand of choice for leading professionals. You’ll be in good company when you ride a Polygon.FeaturesEntry level all-round trail 27.5″ mountain bikeFrame: ALX XC 120mm Travel (27.5″) Taper H/T QR BoostDropout: Alloy Thru Axle DropoutFork: Rockshox Recon RL, 15x100mm, 120mm (27.5″) TravelRear Shock: Rockshox Deluxe Select Plus E2E: 190x45mm Metric, Hardware: M8x25mmHandle Bar: Entity Xpert, AlloyStem: Entity Xpert, AlloyGrips/Bar Tape: Entity Rubber Grip W/ Lock RingHead Set: Threadless Zero Stack HeadsetSaddle: Entity Void SaddleSeat Post: Dropepr Post 150mmSeat Clamp: Bolt Seat ClampChain Set: Shimano Deore FC-M5100 32TBB Set: Shimano DeoreChain: KMC X11-1Cassette: Shimano Deore CS-M5100 11-51TShifting Lever – Right: Shimano Deore SL-M5100, 1×11 Speed TriggerRear Derailleur: Shimano Deore RD-M5100Front & Rear Tyres: Schwalbe Nobby Nic Performance 27.5″x2.25″Rims: Alloy Double Wall 32HFront Hub: Shimano Front HubRear Hub: Shimano Rear HubThrough Axel: Alloy Thru Axle DropoutFront & Rear Brake: Shimano MT200 Hydraulic Disc BrakePlease 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. See our video (below) or 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.