The Polygon Siskiu D5 Mountain Bike is an all-round XC trail full suspension bike. Built around a lightweight aluminium suspension frame, the Siskiu D5 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. 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.FeaturesAvailable in Small & Large. See images for size information.Entry level all-round trail 27.5” mountain bike from PolygonFrame: ALX XC 120mm Travel (27.5”) Taper H/T QR BoostDropout: Alloy QR DropoutFork: SR Suntour XCM HLO, QR 100mm, 120mm (27.5”) TravelRear Shock: SR Suntour Raidon LO Air E2E: 190mm x 51mmHandle Bar: Entity Sport, AlloyStem: Entity Sport, AlloyGrips/Bar Tape: Entity Rubber GripHead Set: Threadless Zero Stack HeadsetSaddle: Entity Void SaddleSeat Post: Entity Sport, AlloySeat Clamp: QR Seat ClampChain Set: Shimano Altus FC-MT2102 36TBB Set: Include Crank SetChain: KMC X9Cassette: Shimano CS-HG200 11-36TShifting Lever - Right: Shimano SL-M31000, 2x9 Speed TriggerRear Derailleur: Shimano RD-M3100Front & Rear Tyres: Spiderbait Tyre 27.5” x 2.25”Rims: Alloy Double Wall 32HFront Hub: Alloy Front HubRear Hub: Alloy Rear HubFront & Rear Brake: Shimano Hydraulic Disc Brake**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.