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 Polygon

Polygon 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.

Features

• Entry level all-round trail 27.5” mountain bike from Polygon
• Frame: ALX XC 120mm Travel (27.5”) Taper H/T QR Boost
• Dropout: Alloy QR Dropout
• Fork: SR Suntour XCM HLO, QR 100mm, 120mm (27.5”) Travel
• Rear Shock: SR Suntour Raidon LO Air E2E: 190mm x 51mm
• Handle Bar: Entity Sport, Alloy
• Stem: Entity Sport, Alloy
• Grips/Bar Tape: Entity Rubber Grip
• Head Set: Threadless Zero Stack Headset
• Saddle: Entity Void Saddle
• Seat Post: Entity Sport, Alloy
• Seat Clamp: QR Seat Clamp
• Chain Set: Shimano Altus FC-MT2102 36T
• BB Set: Include Crank Set
• Chain: KMC X9
• Cassette: Shimano CS-HG200 11-36T
• Shifting Lever - Right: Shimano SL-M31000, 2x9 Speed Trigger
• Rear Derailleur: Shimano RD-M3100
• Front & Rear Tyres: Spiderbait Tyre 27.5” x 2.25”
• Rims: Alloy Double Wall 32H
• Front Hub: Alloy Front Hub
• Rear Hub: Alloy Rear Hub
• Front & Rear Brake: Shimano Hydraulic Disc Brake

Please note: some minor specification changes may occur without notice. Any changes will use equivalent or higher quality parts.

Building your bike: Bikes purchased online are delivered boxed and will require assembly before they can be used. View the GO Outdoors Bike Assembly guide for more info, including step-by-step and video instruction guides.

We are happy to assemble your bike for FREE at any GO Outdoors store with a bike servicing department (this excludes all GO Express stores, and selected other GO locations). Please call ahead to confirm that you would like us to build your bike. You can find store details and phone numbers here. Every bike sold also comes with FREE 6 week safety check.

Can't get to a GO store? Our partners at LeisureLakes bikes will also assemble and inspect any new bikes purchased from our website. You can book a LeisureLakes appointment here.

Warranty and Returns info: Unfortunately, we are not able to process faulty or warranty bike returns through our warehouse. If your bike develops a fault please