The Polygon Siskiu D6 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 D6 benefits from modern geometry, a slacker head tube angle and longer reach and steeper seat. The result is an optimised pedal performance and progressive suspension for when the trail gets rowdy.The bike performs like a hardtail with additional comfort and traction, and comes in a striking yellow colourway that stands out on trail adventures. 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.FeaturesFrame: ALX XC TRAIL FRAMEFork: SUNTOUR XCM BOOST 120mm TRAVELRear Shock: SUNTOUR RAIDON LO AIR, E2E: METRIC 190x45mmHandle Bar: ENTITY SPORT ALLOY, W: 760mm, BB: 31.8mm, R/D: 12mm, B: 6degreeStem: ENTITY SPORT ALLOY, EXT: 45mm, BB: 31.8mm, R/D: 0DegreeHead Set: THREADLESS ZERO STACK HEADSET, ZS 44/28.6 ZS 56/30Saddle: ENTITY VOID SADDLE, ø 7mmSeat Post: RAGE-I DROPPER 150mm / 170mm travel, 30.9 x 442mm (S-M) / 495mm (L-XLBottom Bracket: BSA THREADED 68/73mmChain: KMC X10-1Cassette: SHIMANO DEORE CS-M4100 10-42T 10-SPEEDRear Derailleur: SHIMANO DEORE RD-M4120 DIRECT ATTACH 10-SPEEDFront & Rear Tyres: DELI 27.5″x2.25″ / 29″x2.25″Brake: SHIMANO MT201 HYDRAULIC DISC BRAKEInternal routing for clean lookSizeHeight/cm152.5-165162.5-175172.5-185182.5-195SizeSMLXLPlease 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.